WO2007006830A2 - Método de análisis de residuos de plaguicidas en muestras vegetales - Google Patents
Método de análisis de residuos de plaguicidas en muestras vegetales Download PDFInfo
- Publication number
- WO2007006830A2 WO2007006830A2 PCT/ES2006/000394 ES2006000394W WO2007006830A2 WO 2007006830 A2 WO2007006830 A2 WO 2007006830A2 ES 2006000394 W ES2006000394 W ES 2006000394W WO 2007006830 A2 WO2007006830 A2 WO 2007006830A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- analysis
- extract
- interface
- pesticides
- gas chromatography
- Prior art date
Links
- 238000004458 analytical method Methods 0.000 title claims abstract description 37
- 239000000447 pesticide residue Substances 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title abstract description 29
- 239000000284 extract Substances 0.000 claims abstract description 27
- 238000004817 gas chromatography Methods 0.000 claims abstract description 26
- 239000000575 pesticide Substances 0.000 claims abstract description 25
- 238000000605 extraction Methods 0.000 claims abstract description 19
- 238000004587 chromatography analysis Methods 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000002336 sorption--desorption measurement Methods 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims description 34
- 239000003463 adsorbent Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 6
- 238000000638 solvent extraction Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 abstract description 18
- 238000002347 injection Methods 0.000 abstract description 18
- 238000004811 liquid chromatography Methods 0.000 abstract description 13
- 239000003960 organic solvent Substances 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 25
- 239000012071 phase Substances 0.000 description 13
- 239000001307 helium Substances 0.000 description 8
- 229910052734 helium Inorganic materials 0.000 description 8
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 8
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 235000013311 vegetables Nutrition 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 239000005944 Chlorpyrifos Substances 0.000 description 3
- 239000005947 Dimethoate Substances 0.000 description 3
- PNVJTZOFSHSLTO-UHFFFAOYSA-N Fenthion Chemical compound COP(=S)(OC)OC1=CC=C(SC)C(C)=C1 PNVJTZOFSHSLTO-UHFFFAOYSA-N 0.000 description 3
- 241000227653 Lycopersicon Species 0.000 description 3
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 3
- 239000005949 Malathion Substances 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- FSAVDKDHPDSCTO-WQLSENKSSA-N [(z)-2-chloro-1-(2,4-dichlorophenyl)ethenyl] diethyl phosphate Chemical compound CCOP(=O)(OCC)O\C(=C/Cl)C1=CC=C(Cl)C=C1Cl FSAVDKDHPDSCTO-WQLSENKSSA-N 0.000 description 3
- SBPBAQFWLVIOKP-UHFFFAOYSA-N chlorpyrifos Chemical compound CCOP(=S)(OCC)OC1=NC(Cl)=C(Cl)C=C1Cl SBPBAQFWLVIOKP-UHFFFAOYSA-N 0.000 description 3
- FHIVAFMUCKRCQO-UHFFFAOYSA-N diazinon Chemical compound CCOP(=S)(OCC)OC1=CC(C)=NC(C(C)C)=N1 FHIVAFMUCKRCQO-UHFFFAOYSA-N 0.000 description 3
- JXSJBGJIGXNWCI-UHFFFAOYSA-N diethyl 2-[(dimethoxyphosphorothioyl)thio]succinate Chemical compound CCOC(=O)CC(SP(=S)(OC)OC)C(=O)OCC JXSJBGJIGXNWCI-UHFFFAOYSA-N 0.000 description 3
- MCWXGJITAZMZEV-UHFFFAOYSA-N dimethoate Chemical compound CNC(=O)CSP(=S)(OC)OC MCWXGJITAZMZEV-UHFFFAOYSA-N 0.000 description 3
- ZNOLGFHPUIJIMJ-UHFFFAOYSA-N fenitrothion Chemical compound COP(=S)(OC)OC1=CC=C([N+]([O-])=O)C(C)=C1 ZNOLGFHPUIJIMJ-UHFFFAOYSA-N 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 229960000453 malathion Drugs 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- MEBQXILRKZHVCX-UHFFFAOYSA-N methidathion Chemical compound COC1=NN(CSP(=S)(OC)OC)C(=O)S1 MEBQXILRKZHVCX-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 231100000703 Maximum Residue Limit Toxicity 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002414 normal-phase solid-phase extraction Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- UBCKGWBNUIFUST-YHYXMXQVSA-N tetrachlorvinphos Chemical compound COP(=O)(OC)O\C(=C/Cl)C1=CC(Cl)=C(Cl)C=C1Cl UBCKGWBNUIFUST-YHYXMXQVSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000005377 adsorption chromatography Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- CCDWGDHTPAJHOA-UHFFFAOYSA-N benzylsilicon Chemical compound [Si]CC1=CC=CC=C1 CCDWGDHTPAJHOA-UHFFFAOYSA-N 0.000 description 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- WACQKHWOTAEEFS-UHFFFAOYSA-N cyclohexane;ethyl acetate Chemical compound CCOC(C)=O.C1CCCCC1 WACQKHWOTAEEFS-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001211 electron capture detection Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 238000001284 gas chromatography-nitrogen--phosphorus detection Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000003987 high-resolution gas chromatography Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- VYQNWZOUAUKGHI-UHFFFAOYSA-N monobenzone Chemical compound C1=CC(O)=CC=C1OCC1=CC=CC=C1 VYQNWZOUAUKGHI-UHFFFAOYSA-N 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 208000005814 piedra Diseases 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920001921 poly-methyl-phenyl-siloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 201000009862 superficial mycosis Diseases 0.000 description 1
- FKHIFSZMMVMEQY-UHFFFAOYSA-N talc Chemical compound [Mg+2].[O-][Si]([O-])=O FKHIFSZMMVMEQY-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N30/12—Preparation by evaporation
-
- 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
-
- 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
-
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N2030/062—Preparation extracting sample from raw material
-
- 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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N30/12—Preparation by evaporation
- G01N2030/126—Preparation by evaporation evaporating sample
- G01N2030/127—PTV evaporation
-
- 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
- G01N30/62—Detectors specially adapted therefor
- G01N30/72—Mass spectrometers
- G01N30/7206—Mass spectrometers interfaced to gas chromatograph
Definitions
- GC Gas chromatography
- LV Podhomiak, JF, Negron, FD Griffith Jr. J. Assoc. Off Anal. Chem. Int. 2001, 84, 873-890; E.Ueno, H. Oshima, I. Saito, H. Matsumoto, J. Assoc. Off Anal. Chem. Int. 2003, 86, 1241-1251) and more recently coupled to The mass spectrometry (E. Ueno, H. Oshima, I. Saito, H. Matsumoto, Y. Yoshimura, H. Nakazawa J. Assoc. Off Anal.
- AOAC Official Method 985.22 that involves the extraction with acetone, followed by partition with petroleum ether and dichloromethane, the subsequent concentration of the extract obtained and its analysis by chromatography of gases with different detectors (GC-ECD, GC-NPD and GC-MS) (Official Methods of Analysis, 2000 17th Ed., AOAC INTERNATIONAL, Gaithersburg, MD)
- Solvents other than acetone have been used for the extraction of pesticides from the matrix, such as " acetonitrile (SM Lee, ML Papathakis, CF. Hsiao-Ming, JE Carr, J. Anal. Chem., 1991, 339, 376- 383; W. Liao, T. Joe, WG Cusick, J. Assoc. Off Anal. Chem. Int., 1991, 74, 554-565) or ethyl acetate (DM Holstege, DL Scharberg, ER Tor, LC Hart, FD Galey, J. Assoc. Off Anal. Chem. Int., 1994, 77, 1263-1274; AR
- MRLs maximum residue limits
- European legislation European Council Directives 76/895 EEC, 86/363 / EEC and 90/642 / EEC
- the programmed temperature injector has also been used by filling the glass tube with carbofrit (M. Gamón, C. Lleó, A. Ten, F. Mochol ⁇ , J. Assoc. Off Anal. Chem. Int., 2001, 84 (4), 1209-1216).
- carbofrit M. Gamón, C. Lleó, A. Ten, F. Mochol ⁇ , J. Assoc. Off Anal. Chem. Int., 2001, 84 (4), 1209-1216.
- the initial temperature of the injector must be kept at the boiling temperature of the solvent while the flow division is open. After a while, the flow division is closed and the injector is heated so that the analytes pass to the gas chromatograph column.
- the TOTAD (Through Oven Transfer Adsorption Desorption) interface (Spanish Patent No. 0 ES 2 152-153; U.S. Patent 6,402,947 B1) or the improved system (Spanish Patent No. P200501284) is based on a PTV injector, which has been widely modified, and a series of opening and closing valves as well as a six-way valve.
- the modifications affect the pneumatic system, the introduction of the sample, the elimination of the solvent and the mode of operation (M. Pérez, J. Alario, A. Vázquez, J.
- the TOTAD interface has proven effective for direct coupling of liquid chromatography and gas chromatography, when working both in normal phase and in reverse phase in liquid chromatography. It can also be used for the introduction of large volumes of sample in gas chromatography.
- the TOTAD interface has been used in the analysis of pesticide residues by direct coupling of liquid chromatography and gas chromatography, in water (M. Pérez, J. Alario, A. Vázquez, J. Véen, J. Microcol. Sep. 1999, 11 (8), 582-589; M. Pérez, J. Alario, A. Vázquez, J. Véen, Anal. Chem. 2000, 72, 846-852) and in olive oil (R.
- the method uses the interface device for the direct coupling of liquid chromatography and gas chromatography (Spanish patent n 0 ES 2 152-153; patent US 6,402.947 B1, licensed to Ia company KONIK-Tech, Sant Cugat of the Valles, Barcelona ); or the improved system (Spanish Patent No. P200501284), called the TOTAD (Through Oven Transfer Adsorption Desorption) interface in the scientific literature, for the injection of large volumes in the gas chromatograph.
- the gas chromatograph is equipped with the TOTAD interface, which is fully automatic.
- the TOTAD interface joins the injection valve and allows the introduction of variable volumes of sample pushed by a solvent by means of a liquid chromatography pump.
- the pesticides are extracted from the vegetable sample, previously crushed, using small amounts of organic solvent.
- the extract obtained, once filtered, is introduced into the injection valve that is connected directly to the six-way valve of the TOTAD interface through a tube.
- a pump attached to the injection valve automatically transfers the volume of extract from the injection valve, through the TOTAD interface, to the gas chromatography column.
- the solvents used can be both polar and non-polar solvents.
- the flow rate at which the transfer to the gas chromatograph occurs can vary.
- the adsorbent placed in the inner tube of the interface retains the pesticides and the solvent is removed by the gas stream drawn through the tube or capillary connected to the opposite end of the interface.
- the analysis method allows injecting different volumes of extract, which modifies the opening and closing times of the valves that make up the interface.
- the method of analysis object of the invention is based on the injection of extract volumes higher than usual in gas chromatography, for which the interface device is used for direct coupling of liquid chromatography and gas chromatography (Spanish patent n 0 ES 2 152-153; patent US 6,402.947 B1, licensed to company KONIK Ia-Tech, Sant Cugat of the Valles, Barcelona) or the improved system (Spanish patent No. P200501284) called TOTAD interface (Through Oven Transfer Adsorption Desorption) in the scientific literature.
- the method except for the extraction stage, is fully automatic.
- the opening and closing valves and the six-way valve of the TOTAD interface are solenoid valves that are controlled from the computer software.
- the method consists of two clearly differentiated phases: A first phase in which the pesticides are extracted from the sample and a second phase that constitutes the chromatographic analysis of the pesticides extracted.
- Second Phase Chromatographic analysis of pesticides in the extract obtained.
- the inner tube of the TOTAD interface is filled with an adsorbent material, of a certain length, with a system that prevents the adsorbent from moving.
- the adsorbent material can be any material that retains the pesticides and allows the passage of the carrier gas and the liquid to be passed through.
- the pump that pushes the solvent is connected to the injection valve and this to the six-way valve by means of a tube.
- the six-way valve in turn, is connected by another tube inserted in the inner tube of the TOTAD interface, so that a length greater than the end of the capillary column of gas chromatography that has been introduced by this is introduced same extreme.
- the TOTAD interface Before starting the injection, the TOTAD interface is stabilized at the temperature at which the injection is to be carried out, which must be adequate so that the pesticides are retained in the adsorbent that fills the inner tube of The interface and to achieve solvent removal.
- the gas circulates through said tube entering the two gas inlets of the interface.
- the valve EV1 of the interface is closed and the EV2 open (EV1 and EV2 corresponds to the nomenclature used in the Spanish patent No. ES 2 152-153).
- the helium flow inlet is also closed by the inlet that passes through the adsorbent, and the flow or pressure is modified, if necessary, by the other inlet to the appropriate value, so that the gas that now enters only through the inlet located in the external part of the interface, it crosses the adsorbent and leaves only by the gas chromatography column.
- the injector is rapidly heated to the temperature necessary to produce the thermal desorption of the pesticides, which are carried by the helium current to the chromatographic column, where the chromatographic analysis takes place under the previously programmed conditions.
- the method object of the invention can be used for the multi-residue analysis of pesticides in a single analysis.
- the method object of the invention allows the analysis of pesticide residues in vegetable samples without further treatment of the sample than the extraction.
- the method object of the invention does not require the use of high amounts of organic solvents detrimental to the health of the analyst and to the environment.
- the method object of the invention only needs manipulation of the sample by the analyst in the extraction stage, so that it reduces the errors and contamination caused in said manipulation.
- the method object of the invention includes an extraction stage that is fast and an analysis stage that is fully automatic, so it is especially suitable for the analysis of pesticide residues in routine controls.
- the method object of the invention allows the injection in the chromatographic system of volumes of extract greater than those usually injected in gas chromatography, which can be variable, which allows eliminating the stage of concentration of the extract resulting in an increase in Ia sensitivity and an improvement in detection limits.
- the method object of the invention allows the inner tube of the TOTAD interface filled with the adsorbent material to be used numerous times, without having to be replaced.
- the method object of the invention allows different detection systems to be used in gas chromatography.
- the total time of the analysis of the method object of the invention is significantly less than the time required when the conventional method is used.
- Chromatogram corresponding to the analysis of a tomato sample that was fortified at 0.05 mg / kg with each of the following pesticides: dimethoate, diazinon, fenitrotion, malathion, fenthion, chlorpyrifos, chlorfenvinfos, methidathion, tetrachlorvinfos.
- the extraction conditions as well as the conditions in which the chromatogram has been obtained are those indicated in the embodiment of the invention.
- the volume of extract injected was 50 ⁇ l_ and the solvent flow to which the transfer of 0.1 mL / min is performed.
- the time indicated on the gas chromatogram corresponds only to the analysis time of the gas chromatograph.
- the identification of the peaks is the following: 1) dimethoate 2) diazinon 3) fenitrotion 4) malathion 5) fenthion 6) chlorpyrifos 7) chlorfenvinfos 8) methidathion and 9) tetrachlorvinphs.
- the TOTAD interface is placed horizontally on the left side of the gas chromatograph.
- the EZchrom software Konik, Sant Cugat del Valles, Barcelona) allows to manage the interface from the computer and obtain data from the gas chromatograph.
- the gas chromatography column used is a fused silica capillary column 30 m long and 0.32 mm internal diameter filled with 5% phenylmethylsilicone with a thickness of 0.25 ⁇ m
- a sample of tomato bought in the market was crushed and homogenized. From this crushed sample 2.5 g were taken and fortified, adding 125 • £! _ Of a solution of pesticides in methanol at 1 mg / L thus obtaining a sample fortified with 0.05 mg / Kg of tomato from each of the following pesticides: dimethoate: , diazinon, fenitrotion, malathion, fenthion, chlorpyrifos, chlorfenvinfos, methidathion, tetrachlorvinfos, obtained from
- the inner tube of the TOTAD interface of 2 mm internal diameter
- Tenax TA 80-100 mesh (Chrompack, Mieddelburg, Holland) held, by both ends, with glass wool, to avoid the displacement of the Tenax.
- a filling time was conditioned with a helium flow of 500 mL / min traversing the adsorbent and was heated from 50 0 C to 350 0 C to 50 ° C / 10 min and maintained for 60 min at the final temperature.
- the conditions of the chromatographic analysis are the following: the column is maintained at 40 0 C for 1 min, then the temperature is increased to 170 0 C at 20 ° C / min, then at 3 ° C / min up to 210 0 C and 5 ° C / min up to 230 0 C maintaining this final temperature for 5 minutes.
- the temperature of the Nitrogen-Phosphorus detector is maintained at 250 0 C.
- the oven temperature of the gas chromatograph is maintained at 40 0 C.
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008520896A JP2009500638A (ja) | 2005-07-11 | 2006-07-11 | 植物試料中にある殺虫剤残留物の分析方法 |
US11/995,364 US20080206739A1 (en) | 2005-07-11 | 2006-07-11 | Analysis Method for Pesticide Residues in Plant Samples |
EP06807847A EP1935467A4 (en) | 2005-07-11 | 2006-07-11 | PROCESS FOR ANALYZING PESTICIDE RESIDUES IN PLANT SAMPLES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200501686A ES2265284B1 (es) | 2005-07-11 | 2005-07-11 | Metodo de analisis de residuos de plaguicidas en muestras vegetales. |
ESP200501686 | 2005-07-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007006830A2 true WO2007006830A2 (es) | 2007-01-18 |
WO2007006830A3 WO2007006830A3 (es) | 2007-04-12 |
Family
ID=37637530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2006/000394 WO2007006830A2 (es) | 2005-07-11 | 2006-07-11 | Método de análisis de residuos de plaguicidas en muestras vegetales |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080206739A1 (es) |
EP (1) | EP1935467A4 (es) |
JP (1) | JP2009500638A (es) |
CN (1) | CN101262917A (es) |
ES (1) | ES2265284B1 (es) |
WO (1) | WO2007006830A2 (es) |
Cited By (1)
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CN103558298A (zh) * | 2013-08-07 | 2014-02-05 | 公安部物证鉴定中心 | 利用凝胶渗透色谱处理生物检材的有机磷农药检验方法 |
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ES2327198B1 (es) * | 2008-04-23 | 2010-08-10 | Universidad De Castilla-La Mancha | Procedimiento para analizar plaguicidas en frutos secos. |
CN101498692B (zh) * | 2008-08-18 | 2012-05-02 | 通标标准技术服务(天津)有限公司 | 皮革中农药残留量的测定方法 |
ES2364565B1 (es) * | 2010-02-26 | 2012-09-19 | Universidad De Castilla-La Mancha | Procedimiento para analizar esteroles en aceites comestibles |
ES2390034B1 (es) * | 2010-07-29 | 2014-04-16 | Universidad De Castilla-La Mancha | Procedimiento para analizar ceras en aceites vegetales. |
CN102692468A (zh) * | 2012-05-22 | 2012-09-26 | 天津出入境检验检疫局动植物与食品检测中心 | 一种检测紫苏叶中常用杀菌剂前处理试剂盒及其方法 |
CN102735778A (zh) * | 2012-07-09 | 2012-10-17 | 吴桂玲 | 一种检测有机氯农药残留的前处理方法 |
CN103529153B (zh) * | 2013-07-26 | 2015-07-08 | 宁波检验检疫科学技术研究院 | 一种大豆中多种农药残留的通用快速检测方法 |
CN103472174A (zh) * | 2013-09-06 | 2013-12-25 | 邬金飞 | 气相色谱法检测农田地表水中毒死蜱农药残留量 |
CN104502497B (zh) * | 2014-12-04 | 2016-05-25 | 苏州国环环境检测有限公司 | 一种成熟桔子中杀扑磷残留的检测方法 |
JP2017075902A (ja) * | 2015-10-16 | 2017-04-20 | 公益財団法人科学技術交流財団 | 機器分析による残留農薬分析のための前処理方法 |
CN105334271A (zh) * | 2015-11-13 | 2016-02-17 | 无锡艾科瑞思产品设计与研究有限公司 | 一种中药提取物中农药残留物的检测方法 |
CN106391686A (zh) * | 2016-09-30 | 2017-02-15 | 陕西科技大学 | 一种氯吡硫磷污染黄土的热脱附修复方法 |
CN110376298B (zh) * | 2019-06-13 | 2022-04-19 | 杭州师范大学 | 一种铁皮石斛中残留农药的检测方法 |
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ES2222795B1 (es) * | 2003-03-28 | 2005-12-01 | Universidad De Castilla-La Mancha | Metodo de analisis de residuos de plaguicidas en aceites vegetales. |
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JP2009500638A (ja) | 2009-01-08 |
EP1935467A4 (en) | 2010-10-20 |
ES2265284B1 (es) | 2008-02-01 |
EP1935467A2 (en) | 2008-06-25 |
ES2265284A1 (es) | 2007-02-01 |
US20080206739A1 (en) | 2008-08-28 |
CN101262917A (zh) | 2008-09-10 |
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