EP3265197A1 - Appareil pour séparer des composés chimiques présents dans un échantillon avec un éluant corrosif - Google Patents
Appareil pour séparer des composés chimiques présents dans un échantillon avec un éluant corrosifInfo
- Publication number
- EP3265197A1 EP3265197A1 EP16712961.8A EP16712961A EP3265197A1 EP 3265197 A1 EP3265197 A1 EP 3265197A1 EP 16712961 A EP16712961 A EP 16712961A EP 3265197 A1 EP3265197 A1 EP 3265197A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- corrosive
- eluent
- sample
- acid
- separation column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000003480 eluent Substances 0.000 title claims abstract description 159
- 150000001875 compounds Chemical class 0.000 title claims abstract description 57
- 238000000926 separation method Methods 0.000 claims abstract description 159
- 238000005086 pumping Methods 0.000 claims abstract description 63
- 238000000034 method Methods 0.000 claims abstract description 41
- 238000011084 recovery Methods 0.000 claims abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 33
- 238000010828 elution Methods 0.000 claims description 24
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052790 beryllium Inorganic materials 0.000 claims description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 10
- 229910052796 boron Inorganic materials 0.000 claims description 10
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 8
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 claims description 6
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 6
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 6
- 229940071870 hydroiodic acid Drugs 0.000 claims description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 6
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 5
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims description 5
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 5
- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 3
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 3
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 3
- 235000015165 citric acid Nutrition 0.000 claims description 3
- 239000001530 fumaric acid Substances 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 239000004310 lactic acid Substances 0.000 claims description 3
- 235000014655 lactic acid Nutrition 0.000 claims description 3
- 239000001630 malic acid Substances 0.000 claims description 3
- 235000011090 malic acid Nutrition 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 3
- 229960004889 salicylic acid Drugs 0.000 claims description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 229940098779 methanesulfonic acid Drugs 0.000 claims description 2
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920002530 polyetherether ketone Polymers 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000005077 polysulfide Substances 0.000 claims description 2
- 229920001021 polysulfide Polymers 0.000 claims description 2
- 150000008117 polysulfides Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- 229910052701 rubidium Inorganic materials 0.000 claims description 2
- 229910052723 transition metal Inorganic materials 0.000 claims description 2
- 150000003624 transition metals Chemical class 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000000523 sample Substances 0.000 description 90
- 230000005526 G1 to G0 transition Effects 0.000 description 23
- 239000011347 resin Substances 0.000 description 13
- 229920005989 resin Polymers 0.000 description 13
- 230000007704 transition Effects 0.000 description 11
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 9
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 238000005342 ion exchange Methods 0.000 description 6
- 125000002091 cationic group Chemical group 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000003456 ion exchange resin Substances 0.000 description 4
- 229920003303 ion-exchange polymer Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229920001429 chelating resin Polymers 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 3
- 238000003795 desorption Methods 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 238000005325 percolation Methods 0.000 description 3
- 230000002572 peristaltic effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000004440 column chromatography Methods 0.000 description 2
- 238000012864 cross contamination Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000000155 isotopic effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003251 chemically resistant material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000011087 fumaric acid Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920000058 polyacrylate Chemical group 0.000 description 1
- 150000003141 primary amines Chemical group 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 150000003335 secondary amines Chemical group 0.000 description 1
- BBWWUWINLUQJQM-UHFFFAOYSA-N silver nitrate hydrochloride Chemical compound [N+](=O)([O-])[O-].[Ag+].Cl BBWWUWINLUQJQM-UHFFFAOYSA-N 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 150000003512 tertiary amines Chemical group 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/14—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the introduction of the feed to the apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/18—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns
- B01D15/1864—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns using two or more columns
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/38—Flow patterns
- G01N30/46—Flow patterns using more than one column
- G01N30/466—Flow patterns using more than one column with separation columns in parallel
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/80—Fraction collectors
- G01N30/82—Automatic means therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
- B01D15/361—Ion-exchange
- B01D15/362—Cation-exchange
Definitions
- the present invention relates to an apparatus and an automated method for separating and recovering chemical compounds present in a sample with a corrosive eluent through a separation column.
- Separation column chromatography comprising an ion exchange resin is a commonly used ion-exchange chemical separation process, for example to soften or desalt the water. It implements the percolation process by which a mobile phase (the liquid sample containing the compounds to be separated, an eluent or an eluate) infiltrates through a stationary phase (the ion exchange resin). The difference in affinity of the mobile phase with respect to the stationary phase causes, by repeated sorptions and desortions during the percolation, a progressive separation of the compounds.
- One of the applications of separation column chromatography is the chemical preparation of natural samples, in particular for the measurement of their concentration of cosmogenic nuclides other than 14 C, mainly 10 Be and 26 A1.
- the preparation of natural samples involves a succession of several steps, the final step of which consists in isolating the elements of interest. This final step is carried out using an ion exchange resin included in a separation column. It requires the use of a corrosive eluent so that the dissolved elements of interest pass through said resin which separates them according to their affinity.
- This final step is performed manually so that the items of interest are collected separately at the column output.
- the operator therefore follows a specific sequence during which he introduces the sample, resulting from the dissolution of the quartz mineral fraction, in the separation column, then successively pours different volumes of the corrosive eluent into the separation column.
- Each volume of corrosive eluent poured makes it possible to collect an eluate containing a single element of interest, thus separating the elements of interest.
- the operator in order for each element of interest to be collected separately, the operator must ensure that almost all of the corrosive eluent volume has passed through the separation column before pouring the next volume of corrosive eluent.
- the apparatus according to the invention carries out the extraction of the elements of interest by percolation through a separation column and on the other hand, the collection of the different fractions in a collector maintained under depression by a depressurizer.
- the apparatus according to the invention also makes it possible to subtract the operator from the repetitive, long and dangerous process, with regard to the fluids used, and which requires a high concentration in order to respect the sequence described above and to recover separately the elements of interest at the right time.
- the subject of the invention is an apparatus for separating chemical compounds present in a sample with a corrosive eluent through a separation column comprising:
- a housing having an upstream portion and a downstream portion, intended to receive a separation column
- a collector for collecting an eluate resulting from the elution of the chemical compounds through the separation column
- a depressurizer for applying a vacuum to the collector
- a level sensor located at the buffer tank adapted to emit a signal when the volume of liquid (sample and / or eluent) in the buffer tank has reached a reference value
- a programmable controller adapted to trigger the depressurizer, to receive the signal emitted by the level sensor and to trigger the device for pumping the corrosive eluent and / or the sample when the signal emitted by the sensor is received,
- said housing being fluidly connected to the buffer tank by its upstream part, and to the collector by its downstream part,
- said device for pumping the corrosive eluent and / or the sample being fluidly connected to the buffer tank,
- said depressurizer being fluidly connected to the collector
- the invention relates to a method for separating n chemical compounds present in a sample with a corrosive eluent through a separation column, the method comprising the following steps:
- step d) being automatically triggered only when step c) or the preceding step f) is carried out
- n an integer of 2 to 10
- n being an integer greater than or equal to 1.
- Figure 1 shows a diagram of the apparatus according to the invention.
- FIG. 2 represents a chromatogram showing the separation of boron, beryllium and aluminum using the apparatus according to the invention.
- FIG. 3 represents a chromatogram obtained during the separation of boron, beryllium and aluminum by applying an overpressure upstream of the separation column.
- FIG. 4 represents a graph showing the reproducibility of the separation of boron, beryllium and aluminum using the apparatus according to the invention.
- the invention relates to an apparatus for separating chemical compounds present in a sample with a corrosive eluent through a separation column comprising:
- a housing having an upstream portion and a downstream portion, intended to receive a separation column
- a collector for collecting an eluate resulting from the elution of the chemical compounds through the separation column
- a depressurizer for applying a vacuum to the collector, a level sensor located at the buffer tank adapted to emit a signal when the volume of liquid (sample and / or eluent) in the buffer tank has reached a reference value,
- a programmable controller adapted to trigger the depressurizer, to receive the signal emitted by the level sensor and to trigger the device for pumping the corrosive eluent and / or the sample when the signal emitted by the sensor is received,
- said housing being fluidly connected to the buffer tank by its upstream part, and to the collector by its downstream part,
- said device for pumping the corrosive eluent and / or the sample being fluidly connected to the buffer tank,
- said depressurizer being fluidly connected to the collector
- said programmable controller being connected to said level sensor, said pump device and said depressurizer.
- the apparatus according to the invention further comprises a separation column.
- the separation column is fluidly connected via the upstream portion of the housing to the buffer tank and via the downstream portion of the housing to the collector.
- the separation column is loaded with a stationary phase.
- This stationary phase may be an ion exchange cationic resin comprising styrene and divinylbenzene or acrylic monomer units having sulfonic, phosphorus, carboxymethyl or carboxyl functional groups, or anionic ion exchange resin comprising styrene monomer units. and divinylbenzene or acrylic having quaternary amino groups, tertiary amines, secondary amines or primary amines.
- the stationary phase may be an ion exchange cationic resin comprising monomer units of styrene and divinyl benzene or acrylic polymer having sulphonic functional groups (e.g. Amberlite ® IRP88, Amberlite ® IRP69, Dowex ® 50WX8 , etc.), or carboxylic (eg Amberlite ® IRP64).
- An ion exchange cationic resin comprising styrene and divinylbenzene or acrylic monomer units having sulfonic functional groups is particularly suitable.
- the resin is not compacted in the separation column.
- the resin is disposable.
- a single-use resin, replaced after each use of the apparatus, can prevent cross-contamination, thus improving the quality of the separation of the different nuclides.
- the apparatus of the invention can be used to separate any element of interest dissolved in a complex matrix solution.
- the separation column is fluidly connected via the upstream portion of the housing directly to the buffer tank, Le., That there is no mechanical part between the reservoir and the column.
- the corrosive eluent and / or injected sample is stored in the reservoir, in suspension above the stationary phase of the separation column, before its introduction into said column of separation due to the depression applied to the collector by the depressurizer.
- part of the corrosive eluent and / or injected sample may be introduced into the separation column if this mechanical part is not perfectly sealed, for example if it is corroded by the corrosive eluent. Undesired introduction of the corrosive eluent and / or injected sample alters the separation quality. If the addition of a mechanical part can, at first sight, prevent the risk of unwanted introduction, the wear of this mechanical part generates the risk of an unwanted introduction. Advantageously, the absence of a mechanical part thus makes it possible to overcome this risk.
- the device for pumping the eluent and / or the sample has an upstream part and a downstream part.
- the device for pumping the eluent and / or the sample can be fluidically connected via its downstream part to the buffer tank, in order to inject the volume of corrosive eluent and / or of sample into said buffer tank.
- the device for pumping the eluent and / or the sample is connected fluidically by its downstream part directly to the buffer tank, Le., That there is no mechanical part between the reservoir. and the pumping device.
- the corrosive sample and eluent are stored in separate containers, a sample storage container and a corrosive eluent storage container.
- the sample and the corrosive eluent are then injected by the pumping device into the buffer tank.
- the pumping device is then fluidly connected, by its upstream part, to the sample storage container and the corrosive eluent storage container.
- the different corrosive eluents are each stored in separate corrosive eluent storage containers and the sample is stored in a sample storage container.
- the pumping device is then connected fluidically, by its upstream part, firstly to the sample storage container and secondly to each corrosive eluent storage container.
- the different samples are each stored in separate sample storage containers and the corrosive eluent is stored in an eluent storage container.
- the pumping device is then connected fluidically, by its upstream part, on the one hand to the container of corrosive eluent and on the other hand to each sample storage container.
- the different samples are each stored in separate sample storage containers and the different eluents are each stored in separate eluent storage containers.
- the pumping device is then fluidly connected, through its upstream part, on the one hand to each of the sample storage containers and on the other hand to each of the eluent storage containers.
- the apparatus of the invention may comprise a corrosive eluent pumping device and a sample pumping device.
- the corrosive eluent pumping device is fluidically connected, through its upstream portion, to one or each of the corrosive eluent storage containers
- the sample pumping device is fluidically connected, through its upstream portion, to one or Each of the two pumping devices are fluidically connected, by their downstream part, to the buffer tank in order to separately inject the eluent (s) and the sample (s) into the buffer tank. This makes it possible to avoid contamination between the corrosive eluent (s) and the sample (s) before their injection into the buffer tank.
- the device for pumping the eluent and / or the sample may be a peristaltic pump, a diaphragm pump, a magnetic centrifugal pump, a helical screw pump, a self-priming centrifugal pump, an eccentric screw pump, a gear pump, or a rotary piston pump.
- a peristaltic pump is preferred. It drives the liquid, sample and corrosive eluent, by the action of roller rotating at constant speed and exerting pressure on a flexible tube.
- a peristaltic pump makes it possible to use a large variety of tubes (of different types and diameters) in the apparatus according to the invention, to deliver a constant flow rate and, finally, it requires minimal maintenance.
- the buffer tank makes it possible to store the volume of corrosive eluent and / or sample injected before it is introduced into the separation column. Said volume can be controlled before and / or during the introduction into the separation column.
- the buffer tank makes it possible to damp the flow of corrosive eluent and / or injected sample in order to preserve the upper contact surface of the stationary phase, in particular the resin, contained in the separation column while allowing the storage and elution of corrosive eluent and / or injected sample introduced into the separation column.
- the reservoir allows a uniform collection of each eluate resulting from the elution of the chemical compounds through the separation column.
- the level sensor may be a non-contact radar sensor, a non-contact microwave sensor, a non-contact ultrasonic sensor, a hydrostatic pressure level sensor, a level sensor by differential pressure, a level probe by radar guided, a level probe by capacitive principle.
- the level sensor contributes to maintaining a stable and reproducible reference level of corrosive eluent and / or sample injected above the separation column, and in particular the phase stationary of the separation column. It thus makes it possible to avoid the drying of the stationary phase, and thus contributes to the quality of the separation.
- the level sensor is located at a distance of less than 20 cm above the bed of the stationary phase loaded in the separation column, in particular at a distance of between 1 cm and 10 cm above above the bed of the stationary phase, more particularly at a distance of between 2 cm and 7 cm from the bed of the stationary phase, particularly at a distance of 5 cm above the bed of the stationary phase.
- the level sensor is fixed, for example, by screwing on the reservoir of the pumping device so as to detect the presence of liquid above the bed of the stationary phase.
- the immersed part of the sensor is made of chemically resistant material, for example polysulfone.
- Polysulfone is ideally suited because it is a material chemically resistant to a wide variety of corrosive eluents, such as acids and in particular hydrochloric acid. It also resists and has high concentrations of corrosive eluents, such as acids.
- the apparatus may comprise an isolation means which is located between the downstream portion of the housing and the upstream collector portion. This isolation means makes it possible to isolate the separator column from the collector and thus retain the wet stationary phase and to avoid preferential path formation in the separation column if it is kept dry under vacuum.
- the collector comprises compartments for the collection of eluates containing one of the chemical compounds.
- each compartment of the collector can collect an eluate containing one of the chemical compounds.
- the collector comprises at least as many compartments as eluates to collect containing one of the chemical compounds.
- a manifold compartment may comprise a container for collecting an eluate containing one of the chemical compounds.
- a compartment comprises at least as many containers as eluates to collect containing one of the chemical compounds. After collecting the eluate, the container can advantageously allow the transport of the collected eluate.
- This container may be a container conventionally used in chemistry, such as a beaker, a flask, an Erlenmeyer flask, a crystallizer, a cup, a test tube.
- the manifold can be sealed and equipped with a pressure gauge to measure and control the depression applied by the depressurizer.
- the depressurizer may be a diaphragm vacuum pump, a vane vacuum pump, a screw vacuum pump, a spiral pump, a turbomolecular vacuum pump, a diffusion vacuum pump.
- a diaphragm vacuum pump is particularly suitable for the apparatus according to the invention. Indeed, it offers wide ranges of vacuum and pumping speed adapted to the device. It is also resistant to the vapors of a corrosive eluent.
- the depression applied by the depressurizer makes it possible to accelerate the flow of the eluate leaving the column and thus to reduce the time taken by the different elution volumes to pass through the separation column. It therefore advantageously makes it possible to reduce the time required for the separation of the chemical compounds.
- the application of a depression is a gentle method that does not generate constraints related to the physical conditioning of the stationary phase of the separation column.
- the loading of the stationary phase in the separation column can be done without any particular method, technique and constraint, because the application of a depression does not cause the formation of preferential path. Regular renewal of the stationary phase is therefore possible and the risk of cross-contamination of the stationary phase is therefore limited.
- the apparatus according to the invention is therefore easy to implement.
- An overpressure also generates a risk of projection of the corrosive eluent to the outside of the device, which is very dangerous for the user of the device.
- the apparatus according to the invention is therefore not dangerous to implement.
- the programmable controller is sealed and maintained under a slight pressure of inert gas such as nitrogen, argon or helium.
- inert gas such as nitrogen, argon or helium.
- the apparatus according to the invention also comprises an electrical box accommodating all the electrical equipment.
- This electrical box is sealed and maintained under slight pressure of inert gas such as nitrogen, argon or helium.
- inert gas such as nitrogen, argon or helium.
- the apparatus according to the invention comprises separation columns arranged in parallel.
- the paralleling of the separation columns makes it possible to increase the number of samples to be processed.
- the apparatus according to the invention comprises as many buffer tanks, housings, level sensors as separation columns arranged in parallel. It can thus comprise a buffer tank, a housing and a level sensor for each of the separation columns.
- the number of compartments or containers in the manifold compartments is adapted to the number of separation columns of the apparatus and eluates to be collected containing one of the chemical compounds.
- the apparatus according to the invention comprises separation columns arranged in series.
- the separation columns are arranged such that the outlet of one is fluidly connected to the inlet of the next and so on to allow the passage of fluids from the buffer tank to the collector.
- a configuration makes it possible to optimize the separation (resolution factor, separation factor) and / or the purification (combination of different types of resins (anionic, cationic)) of some of the chemical compounds.
- the apparatus according to the invention comprises at least two parallel rows of separation columns arranged in series.
- the apparatus according to the invention comprises as many buffer tanks, housings, level sensors as parallel lines of separation columns arranged in series.
- the number of compartments or containers in the manifold compartments is adapted to the number of sets of separation columns of the apparatus and eluates to collect containing one of the chemical compounds.
- the number of separation columns arranged in series in each parallel line may vary, or be the same, from one line to another.
- each buffer tank makes it possible to dampen the flow of corrosive eluent and / or injected sample in order to preserve the upper contact surface of the resin contained in the column while allowing storage and then elution.
- synchronous corrosive eluent and / or injected sample introduced into the separation columns.
- the reservoir allows a uniform collection of each eluate resulting from the elution of the chemical compounds through the separation column and a less abrupt solicitation of the elements.
- the apparatus comprises a device for selecting the fluid flow pathways, called a channel selector.
- the channel selector has an upstream portion having one or more input channels.
- the channel selector has a downstream portion having one or more output channels.
- the channel selector makes it possible to open at least one passageway and to close the others in order to allow or prevent the flow of a fluid, in particular a corrosive eluent, a sample and / or an eluate.
- the channel selector can be connected to the programmable controller.
- the programmable controller is then adapted to trigger, by the actuation of the channel selector, the opening and closing of one or more passageways.
- the programmable controller can trigger the channel selector when it receives the signal from the level sensor.
- the channel selector may be a multi-channel valve, for example a valve comprising from 2 to 10 lanes, in particular 3, 4, 5, 6, 7, 8 and 9 lanes.
- a first channel selector may be fluidically connected, through its upstream portion, to one or more sample storage containers (s) and / or one or more corrosive eluent storage containers (s).
- the first channel selector may comprise at least as many input channels as sample storage container (s) and / or corrosive eluent (s).
- the first channel selector can be fluidly connected, by its downstream part, to one or more sample pumping devices and / or corrosive eluent (s).
- the first channel selector may include at minus as many output (s) as pumping devices (s) of corrosive eluent (s) and / or sample (s).
- the first channel selector makes it possible to open one of the passageways and to close the others in order to inject, by means of the pumping devices, into one or more buffer tanks, the sample or samples and / or or the corrosive eluants.
- the programmable controller is adapted to trigger, by the first channel selector, the opening of one of the passageways and the closing of the others in order to inject, at the same time. pumping devices in the buffer tank (s), the sample (s) and / or the corrosive eluent (s).
- a second channel selector can then be fluidically connected, by its upstream part, to one or more pumping devices of the corrosive eluent (s) and / or sample (s). and, by its downstream part, to the buffer tanks of each separation column arranged in parallel or of each of the parallel lines.
- the second selector may include at least as many input channel (s) as pumping devices (s) corrosive (s) and / or sample (s).
- the second channel selector may comprise at least as many output channels as buffer tanks of each separation column disposed in parallel or each of the parallel lines.
- the second channel selector makes it possible to open as many passageways as separation columns arranged in parallel or as parallel lines. This makes it possible to inject, simultaneously or successively, the desired sample and / or the corrosive eluent necessary for the separation of the chemical compounds, by the pumping devices, into the buffer tanks of each separation column arranged in parallel or of each parallel lines.
- the programmable controller is adapted to trigger, by the operation of the second channel selector, the opening of one of the passageways and the closing of the others.
- the actuation of the second channel selector makes it possible to open one of the passageways and to close the others in order to feed one or more of the separation columns arranged in parallel or one or more of the parallel lines.
- a third channel selector can be fluidly connected, by its upstream part, to the downstream part of the housing.
- the third channel selector can be connected fluidically, by its downstream part, to the collector, in particular to the compartments of the collector or to the receptacles included in the compartments of the collector.
- the third channel selector includes an input channel and at least as many output channels as chemical compounds to be separated.
- the third r selector of lanes makes it possible to open one of the passage lanes and to close the others in order to: allow the flow of an eluate leaving the separation column to one of the different compartments of the collector, or one of the different containers included in a compartment of the collector, and
- the programmable controller is adapted to trigger, by the actuation of the third channel selector, the opening of one of the passageways and the closing of the others.
- the actuation of the third channel selector makes it possible to open one of the passageways and to close the others in order to separately collect each eluent containing one of the different chemical compounds in one of the different compartments of the collector or in one of the different containers included in the different compartments of the collector.
- corrosive eluent denotes a corrosive eluent for metals according to the European regulation CLP (EC) No. 1272/2008 relating to the classification, labeling and packaging of substances and Typically, corrosive eluents include descaling agents, acid toilet cleaners, bathroom cleaners, hypochlorite bleaches, multipurpose cleaners, hard surface cleaners and disinfectants, and product additives.
- hydrochloric acid in particular sodium hydroxide, potassium hydroxide, sodium hypochlorite, glutaraldehyde, silver nitrate hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid , sulfamic acid, phosphoric acid, nitric acid, p-toluenesulfonic acid, salicylic acid, methanesulfonic acid, oxalic acid, succinic acid, citric acid, malic acid, acid lactic acid, fumaric acid, trifluoroacetic acid and mixtures thereof, preferably hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, sulfamic acid, phosphoric acid, nitric acid and mixtures thereof.
- a corrosive eluent may limit the life of the device.
- hydrochloric acid promotes the corrosion of stainless steels, it also reacts with iron to produce dihydrogen, a particularly dangerous gas.
- the use of a compatible chemical material makes it possible to avoid these problems.
- the parts in contact with the corrosive eluent are chemically compatible material.
- the chemically compatible material may be polymethyl methacrylate, polytetrafluoroethylene, polypropylene, polyetheretherketone, phenylene polysulfide, polysulfone, polyvinyl chloride, polyvinylidene fluoride and polyester.
- the apparatus according to the invention comprises: - x parallel housing (not shown), having an upstream portion and a downstream portion, for receiving x separation columns la-lh,
- sample pumping devices 3a-3h for injecting said sample into each of the x buffer tanks 4a-4h
- a collector 5 for collecting an eluate, resulting from the elution of the chemical compounds through each of the separation columns la-1h,
- a depressurizer (not shown) for applying a vacuum to the collector 5
- each x sensors being adapted to emit a signal when the volume of liquid (sample and / or eluent) in the buffer tank 4a-4h has reaches a reference value
- a first channel selector 6 having therein input channels and an output channel, for enabling the flow of one of the corrosive eluents therein,
- a second channel selector 7 having an input channel and x output channels, to allow the successive flow of one of the corrosive eluents to the buffer tanks 4a-4h,
- a programmable controller (not shown) adapted to trigger the depressurizer, to receive the signal emitted by the level sensor and to trigger the pumping devices 2 and 3a-3h, the first channel selector 6, the second channel selector 7 and / or the third channel selector 8a-8h when the signal emitted by the sensor is received,
- said pump device 2 being connected fluidically, by its upstream part, to the output channel of the first channel selector 6 and, by its downstream part, to the input channel of the second channel selector 7,
- said second channel selector 7 being fluidically connected, by its x output channels, to said x buffer tanks 4a-4h,
- each of said x pumping devices 3a-3h being connected fluidically, by their downstream portion, to one of said x buffer tanks 4a-4h,
- each of said x housings being fluidically connected, by its upstream part, to one of the x buffer tanks 4a-4h, and, by its downstream part, to the input channel of one of the x third channel selector 8a-8h,
- said third channel selectors 8a-8h being fluidically connected, by their n output channels, to said collector 5,
- said depressurizer being fluidly connected to said collector 5
- said programmable controller being connected to said depressurizer, to said level sensors, to said pumping devices 2 and 3a-3h, to said first channel selector 6, to said second channel selector 7 and to said third channel selectors 8a-8h, x being an integer between 1 and 100, preferably from 4 to 50, more preferably still from 6 to 20, y being an integer between 1 and 20, preferably from 2 to 10, more preferably still 3, 4 , 5, 6, 7, 8, 9 and n being an integer from 2 to 10, especially 3, 4, 5, 6, 7, 8 or 9.
- the corrosive eluents are stored in corrosive eluent storage containers 9a-9c, and the sample is stored in the x sample storage containers.
- the first channel selector 6 is then fluidically connected, by its upstream part, to each of the corrosive eluant storage containers 9a-9c.
- Each of said x pumping devices 3a-3h is then fluidically connected, through their upstream part, to the x sample storage containers.
- the manifold 5 may comprise x compartments, each compartment comprising n containers 1a-1x.
- the third channel selectors 8a-8h are then fluidly connected, by their n output channels, to the containers 1a-lx
- the invention also relates to a process for separating n chemical compounds present in a sample with a corrosive eluent through a separation column, the process comprising the following steps:
- step d) being automatically triggered only when step c) or the preceding step f) is carried out, n being an integer of 2 to 10, in particular 3, 4, 5, 6, 7, 8 or 9,
- n being an integer greater than or equal to 1.
- the sample is obtained by dissolution in an acid, for example hydrofluoric acid, of a purified quartz mineral fraction, said purified quartz fraction comprising elements of the alkali metal family (Li , Na, Rb), alkaline earth metals (Be, Mg, Ca), transition metals (Ti, Fe), boron elements, and aluminum, preferably elements of boron, beryllium, and 'aluminum.
- an acid for example hydrofluoric acid
- the purified quartz fraction comprising elements of the alkali metal family (Li , Na, Rb), alkaline earth metals (Be, Mg, Ca), transition metals (Ti, Fe), boron elements, and aluminum, preferably elements of boron, beryllium, and 'aluminum.
- a depression downstream of the separation column is applied during step a) of the method according to the invention.
- This depression is applied by the depressurizer.
- the depression is less than 500 mbar, preferably 10 mbar to 300 mbar, more preferably still 25 mbar to 200 mbar. Depression advantageously makes it possible to accelerate the carrying out of steps b), d) and e) of the process according to the invention.
- the depression is not applied during the transitions between the steps of the method.
- the depression is maintained during steps b), c), d), e) and f) of the process and stops only when the process stops.
- a sample volume is introduced into the separation column comprising a stationary phase. This sample volume passes through the stationary phase resulting in the sorption of the n chemical compounds present in the sample in this stationary phase.
- Step b) of the process according to the invention is completed when the sample volume is completely introduced into the separation column.
- Step c) of the method according to the invention is therefore performed when it determines that step b) is completed.
- step d) of the method according to the invention is then automatically triggered for the first time.
- step d) of the process according to the invention a volume of corrosive eluent is introduced into the separation column.
- This volume of corrosive eluent passes through the stationary phase and causes the desorption of at least one of the n chemical compounds.
- the desorption of the n chemical compounds depends on their affinity with the eluent and with the stationary phase. At least one of the n chemical compounds is thus recovered, downstream of the separation column, during step e). Steps d) and e) are therefore performed at the same time.
- Step d) of the process according to the invention is completed when the volume of corrosive eluent is completely introduced into the separation column 1. This is detected by the implementation of step f) of the process according to the invention .
- a signal is transmitted and transmitted to automatically trigger step d).
- Step d) is automatically triggered if it has been repeated less than n times, otherwise it is not triggered and the method according to the invention stops.
- applying a vacuum downstream of the separation column means "triggering of the depressurizer by the programmable controller to apply a vacuum to the downstream collector" of the separation column ".
- Step a) of the method according to the invention can be carried out by the depressurizer and the programmable controller of the apparatus according to the invention.
- Step b) of the method according to the invention can be performed by the housing comprising the separation column, the buffer tank, the sample pumping device and the programmable controller of the apparatus according to the invention.
- detecting the introduction of the entire volume of sample through the separation column means “transmitting a signal when the sample volume in the buffer tank has been reduced. reaches a reference value by the level sensor ".
- Step c) of the method according to the invention can be performed by the level sensor of the apparatus according to the invention.
- introduction of a corrosive eluent volume into the separation column means "injection of a corrosive eluent by the corrosive eluent pumping device initiated by the controller. programmable, in the buffer tank, then in the separation column ".
- Step d) of the method according to the invention can be carried out by the housing comprising the separation column, the buffer tank, the pumping device of the corrosive eluent and the programmable controller of the apparatus according to the invention.
- Step e) of the method according to the invention can be carried out by the collector of the apparatus according to the invention.
- Step f) of the method according to the invention can be carried out by the level sensor of the apparatus according to the invention.
- step d) being automatically triggered only when step c) or the preceding step f) is performed
- step d) being automatically triggered only when step c) or the preceding step f) is performed
- the method of the invention may further comprise a step of storing a volume of corrosive eluent and / or sample in a buffer tank.
- This storage step can be performed between step a) and step b) of the method of the invention.
- This storage step can be performed by the buffer tank of the apparatus according to the invention.
- the corrosive eluent is as defined above in the part on the apparatus according to the invention.
- the corrosive eluent is selected according to the elements present and their concentration in the treated sample.
- the corrosive eluent may be hydrochloric acid, the acid hydrobromic acid, hydroiodic acid, sulfuric acid, sulphamic acid, phosphoric acid, nitric acid, p-toluenesulphonic acid, salicylic acid, methanesulphonic acid, oxalic acid, succinic acid, citric acid, malic acid, lactic acid, fumaric acid, trifluoroacetic acid and their mixtures, preferably hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, sulfamic acid, phosphoric acid, nitric acid and mixtures thereof.
- Hydrochloric acid is a corrosive eluent which is suitable because it is a good proton donor, it is not oxidizing and it presents a cheap economic choice for less toxicity.
- the normality of the corrosive eluent is from 0.1 N to 10 N, preferably from 0.5 N to 7 N, more preferably still from 1.5 N to 4.5 N.
- the last value range above makes it possible to obtain a better separation of the boron, beryllium and aluminum elements.
- step d Only one eluent can be used for each of the m repetitions of step d). A different eluent, in nature and / or in normality, can also be used for certain steps d) m repetitions. Finally, a different eluent, in nature and / or in normality, can be used for each step d) m repetitions.
- the normality of the corrosive eluent influences the quality of the separation of compounds (the largest possible resolution factor).
- the corrosive eluent is selected according to the elements present and their concentration in the treated sample. According to a preferred embodiment, the nature and normality of the eluent are chosen so as to cause the desorption of only one of the n chemical compounds for each of the n repetitions of step d). In this preferred embodiment, only one of the n chemical compounds is then recovered, downstream of the separation column 1 during step e).
- the sample volume introduced in step b) is 0.5 ml to 50 ml, in particular 1 ml and 25 ml, more particularly from 1.5 ml to 10 ml.
- the volume of corrosive eluent introduced in step d) in the separation column 1 is from 1 ml to 200 ml, in particular from 5 ml to 175 ml, more particularly from 20 ml to 120 ml.
- the eight separation columns la-lh are charged with ion exchange cationic resin (Dowex 50WX8).
- the corrosive eluents are stored in one of the three containers 9.
- the containers 9a-9c are fluidly connected to the first channel selector 6 (three-way solenoid valve model WTA-2-3MFS-2 from TAKAZAGO), and the device pumping 2 (peristaltic pump WPX1 model from WELCO), itself connected to the second channel selector 7 (eight-way solenoid valve model WTA-2K-8MOG-1 from TAKAZAGO).
- the pumping device 2 injects the corrosive eluants, selected using the first and second channel selector 6, 7 and a programmable controller (National Instrument NI CRIO9076, not shown), into the eight buffer tanks 4a-4h.
- the eight pumping devices 3a-3h make it possible to inject the eight samples, stored in the storage containers 10a-10h, into the eight buffer tanks 4a-4h.
- the eight third channel selectors 8a-8h make it possible to open passageways in order to separately collect each eluate containing the chemical compounds in the different beakers. 1 x included in the compartments of the manifold 5.
- the manifold 5 is a sealed rack maintained under a depression of 150 mbar by a depressurizer (not shown).
- the level sensor (PK XP-4059 model of the Honeywell brand, not shown) is located within the eight buffer tanks 4a-4h, five centimeters, above the zero level formed by the resin in the separation columns. -1 h. It detects the complete elution of each volume and conditions the transition to the next step. The remaining volume is eluted according to a fixed time transition, programmed in the programmable controller, until complete elution.
- control of the system is managed by the programmable controller. Finally, the supervision of the set and the sequential execution of the process are defined in an LABVIEW program.
- Example 1 The apparatus described in Example 1 is used to obtain a separation of the following chemical compounds: boron, beryllium and aluminum. Eight identical samples are obtained from a synthetic solution containing 1000 ⁇ l of boron, 300 ⁇ l of beryllium and 1000 ⁇ l of aluminum.
- the volume (1.5 ml), samples stored in the containers 10a-10h, is injected simultaneously by the eight pumping devices 3a-3h dedicated in the eight respective buffer tanks 4a-4h provided for this purpose and then introduced into the eight respective separation columns la-lh.
- the transition to the next step is validated, that is to say that the passage of the corrosive eluent (HC1 at 1.5 N) present in the container 9a is then possible, thanks to the programmable controller, through the first channel selector 6, and a volume of this corrosive eluent (40 ml) is injected, through the second channel selector 7, by the pumping device. 2 in the eight buffer tanks 4a-4h, then introduced into the separation columns la-lh.
- the transition to the next step is validated, that is to say that the passage of the corrosive eluent (HC1 at 1.5 N), present in the container 9b, is then possible, thanks to the programmable controller, through the first channel selector 6, and a volume of this corrosive eluent (115 ml) is injected, through the second channel selector 7, by the device pumping 2 in the eight buffer tanks 4a-4h, then introduced into the separation columns la-lh.
- the transition to the next step is validated, that is to say that the passage of the corrosive eluent (HC1 at 4.5 N), present in the container 9c, is then possible, thanks to the programmable controller, through the first channel selector 6, and a volume of this corrosive eluent (50 ml) is injected, through the second channel selector 7, by the device of pumping 2 in the eight buffer tanks 4a-4h, then introduced into the separation columns la-lh.
- the programmable controller opens the channels, through the eight third channel selectors 7a-h, allowing separate collection of each of the eluates containing the chemical compounds to the beakers 1a-lx included in the collector 5. Every 10ml, the eluates thus collected are recovered and systematically analyzed by an ICP OES spectrometer in order to obtain an overall chromatogram (separation of the chemical compounds according to the eluent (nature and concentration) and the total eluted volume). The chromatogram obtained is shown in FIG.
- Example 3 Overpressure separation experiments and results obtained.
- Example 1 The apparatus described in Example 1 is used to obtain a separation of the following chemical compounds: boron, beryllium and aluminum, but the eight buffer tanks 4a-4h and the eight level sensors are removed.
- the pumping device 2, and the eight pumping devices 3a-3h impose an injection rate (4 ml / min) samples and different corrosive eluents in the eight separation columns la-lh. This imposed flow therefore generates an overpressure upstream of said separation columns la-lh.
- the volume (1.5 ml) of the samples stored in the containers 10a-10h is injected simultaneously by the eight pumps into the eight respective separation columns la-lh.
- the transition to the next step is validated, that is to say that the passage of the corrosive eluent (HC1 1.5 N) present in the container 9a , is then possible, thanks to the programmable controller, through the first channel selector 6, and a volume of this corrosive eluent (40 ml) is injected, through the second channel selector 7, by the eight pumps into the columns of separation la-lh.
- the transition to the next step is validated, that is to say that the passage of the corrosive eluent (HC1 1.5 N) present in the container 9b is then possible, thanks to the programmable controller, through the first channel selector 6, and a volume of this Corrosive eluent (115 ml) is injected through the second channel selector 7 by the eight pumps into separation columns la-lh.
- the transition to the next step is validated, that is to say that the passage of the corrosive eluent (HC1 4.5 N), present in the 9c container, is then possible, through the programmable controller, through the first channel selector 6, and a volume of this corrosive eluent (50 ml) is injected through the second channel selector 7, by the eight pumps in the separation columns la-lh.
- the programmable controller opens the channels, through the eight third channel selectors 7a-7h, allowing separate collection of each of the eluates containing the chemical compounds to the beakers 1a-lx included in the manifold 5. Every 5ml, the eluates thus collected are recovered and systematically analyzed by an ICP OES spectrometer in order to obtain an overall chromatogram (separation of the chemical compounds according to the eluent (nature and concentration) and the total eluted volume). The chromatogram obtained is shown in FIG.
- the following operation consists in making three separations (S1, S2 and S3) of a calibrated standard usually used in SMA using the apparatus of Example 1 in order to verify the reproducibility thereof. Reproducibility is then evaluated as SMA.
- SMA measures the isotopic ratio between the known concentration of a stable element (in this case, 9 Be) and that to be determined from one of its radioactive isotopes ( 10 Be) contained in a sample.
- the calibrated standard is K STD13 whose isotopic ratio 10 Be / 9 Be is certified and equal to 5.24 * 10-13
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1551923A FR3033261B1 (fr) | 2015-03-06 | 2015-03-06 | Appareil pour separer des composes chimiques presents dans un echantillon avec un eluant corrosif |
| PCT/FR2016/050505 WO2016142609A1 (fr) | 2015-03-06 | 2016-03-04 | Appareil pour séparer des composés chimiques présents dans un échantillon avec un éluant corrosif |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3265197A1 true EP3265197A1 (fr) | 2018-01-10 |
Family
ID=53483949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16712961.8A Withdrawn EP3265197A1 (fr) | 2015-03-06 | 2016-03-04 | Appareil pour séparer des composés chimiques présents dans un échantillon avec un éluant corrosif |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3265197A1 (fr) |
| FR (1) | FR3033261B1 (fr) |
| WO (1) | WO2016142609A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192660B (zh) * | 2017-05-27 | 2023-09-12 | 中国科学院上海技术物理研究所 | 一种用于动态观察碲锌镉材料化学腐蚀坑的装置与方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH448564A (de) * | 1964-06-01 | 1967-12-15 | Ceskoslovenska Akademie Ved | Einrichtung zum Überführen von zu analysierenden Proben in mindestens eine chromatographische Kolonne |
| US5112492A (en) * | 1990-12-11 | 1992-05-12 | Biotage Inc. | Automated bubble trap |
| EP2345895B1 (fr) * | 2008-10-06 | 2020-09-09 | ARKRAY, Inc. | Dispositif d'analyse pour chromatographie liquide avec un dispensateur de phase mobile et avec un réservoir pour phase mobile |
| WO2012022620A1 (fr) * | 2010-08-17 | 2012-02-23 | Grünenthal GmbH | Procédé et dispositif d'alimentation d'appareils d'analyse et de systèmes de manutention de liquides avec des liquides |
-
2015
- 2015-03-06 FR FR1551923A patent/FR3033261B1/fr active Active
-
2016
- 2016-03-04 EP EP16712961.8A patent/EP3265197A1/fr not_active Withdrawn
- 2016-03-04 WO PCT/FR2016/050505 patent/WO2016142609A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3033261B1 (fr) | 2019-05-31 |
| FR3033261A1 (fr) | 2016-09-09 |
| WO2016142609A1 (fr) | 2016-09-15 |
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