CH650863A5 - Method and apparatus for recording buffer capacity curves - Google Patents
Method and apparatus for recording buffer capacity curves Download PDFInfo
- Publication number
- CH650863A5 CH650863A5 CH379882A CH379882A CH650863A5 CH 650863 A5 CH650863 A5 CH 650863A5 CH 379882 A CH379882 A CH 379882A CH 379882 A CH379882 A CH 379882A CH 650863 A5 CH650863 A5 CH 650863A5
- Authority
- CH
- Switzerland
- Prior art keywords
- solution
- pka
- buffering capacity
- curve
- acid
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000000872 buffer Substances 0.000 title claims abstract description 16
- 239000002253 acid Substances 0.000 claims abstract description 39
- 239000000126 substance Substances 0.000 claims abstract description 12
- 239000000243 solution Substances 0.000 claims description 61
- 230000003139 buffering effect Effects 0.000 claims description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 150000001875 compounds Chemical class 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 150000001413 amino acids Chemical class 0.000 claims description 16
- 239000012488 sample solution Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- 150000007513 acids Chemical class 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 13
- 238000004448 titration Methods 0.000 claims description 13
- 235000013305 food Nutrition 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 8
- 238000010494 dissociation reaction Methods 0.000 claims description 8
- 230000005593 dissociations Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 108090000623 proteins and genes Proteins 0.000 claims description 8
- 102000004169 proteins and genes Human genes 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 102000004196 processed proteins & peptides Human genes 0.000 claims description 4
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 101100037762 Caenorhabditis elegans rnh-2 gene Proteins 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000000862 absorption spectrum Methods 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 239000013060 biological fluid Substances 0.000 claims description 2
- 239000007853 buffer solution Substances 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 claims description 2
- 230000001747 exhibiting effect Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000004069 differentiation Effects 0.000 abstract description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 18
- 238000012360 testing method Methods 0.000 description 17
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 16
- 210000002700 urine Anatomy 0.000 description 16
- 235000001014 amino acid Nutrition 0.000 description 15
- 229940024606 amino acid Drugs 0.000 description 15
- 239000000523 sample Substances 0.000 description 15
- 244000269722 Thea sinensis Species 0.000 description 13
- 229940093915 gynecological organic acid Drugs 0.000 description 12
- 150000007524 organic acids Chemical class 0.000 description 12
- 235000005985 organic acids Nutrition 0.000 description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 11
- 230000015654 memory Effects 0.000 description 11
- 230000006870 function Effects 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 238000000855 fermentation Methods 0.000 description 8
- 230000004151 fermentation Effects 0.000 description 8
- 235000014655 lactic acid Nutrition 0.000 description 8
- 239000004310 lactic acid Substances 0.000 description 8
- 235000013616 tea Nutrition 0.000 description 8
- 235000018102 proteins Nutrition 0.000 description 7
- 235000015165 citric acid Nutrition 0.000 description 6
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 6
- 235000013555 soy sauce Nutrition 0.000 description 6
- 235000013311 vegetables Nutrition 0.000 description 6
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 description 5
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 5
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 description 5
- 102100026109 F-box only protein 43 Human genes 0.000 description 5
- 101100333307 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) EMI2 gene Proteins 0.000 description 5
- 239000002361 compost Substances 0.000 description 5
- 238000010790 dilution Methods 0.000 description 5
- 239000012895 dilution Substances 0.000 description 5
- 101150037264 fbxo43 gene Proteins 0.000 description 5
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 4
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 4
- 235000015197 apple juice Nutrition 0.000 description 4
- 235000011090 malic acid Nutrition 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 235000013997 pineapple juice Nutrition 0.000 description 4
- 235000005979 Citrus limon Nutrition 0.000 description 3
- 244000131522 Citrus pyriformis Species 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 235000013353 coffee beverage Nutrition 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 235000019674 grape juice Nutrition 0.000 description 3
- 235000015201 grapefruit juice Nutrition 0.000 description 3
- 235000009569 green tea Nutrition 0.000 description 3
- 235000021539 instant coffee Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000015205 orange juice Nutrition 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000000954 titration curve Methods 0.000 description 3
- 239000000052 vinegar Substances 0.000 description 3
- 235000021419 vinegar Nutrition 0.000 description 3
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical compound N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 2
- 235000006468 Thea sinensis Nutrition 0.000 description 2
- 241001148470 aerobic bacillus Species 0.000 description 2
- -1 amino compound Chemical class 0.000 description 2
- 239000006286 aqueous extract Substances 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 235000020279 black tea Nutrition 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 235000011194 food seasoning agent Nutrition 0.000 description 2
- 235000013922 glutamic acid Nutrition 0.000 description 2
- 239000004220 glutamic acid Substances 0.000 description 2
- 150000002391 heterocyclic compounds Chemical class 0.000 description 2
- 239000003864 humus Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000001630 malic acid Substances 0.000 description 2
- 229940099690 malic acid Drugs 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 235000002906 tartaric acid Nutrition 0.000 description 2
- 239000011975 tartaric acid Substances 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
- 235000014101 wine Nutrition 0.000 description 2
- BJEPYKJPYRNKOW-UWTATZPHSA-N (R)-malic acid Chemical compound OC(=O)[C@H](O)CC(O)=O BJEPYKJPYRNKOW-UWTATZPHSA-N 0.000 description 1
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 description 1
- MIDXCONKKJTLDX-UHFFFAOYSA-N 3,5-dimethylcyclopentane-1,2-dione Chemical compound CC1CC(C)C(=O)C1=O MIDXCONKKJTLDX-UHFFFAOYSA-N 0.000 description 1
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- 241000590020 Achromobacter Species 0.000 description 1
- 241000331231 Amorphocerini gen. n. 1 DAD-2008 Species 0.000 description 1
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000004135 Bone phosphate Substances 0.000 description 1
- 101000782236 Bothrops leucurus Thrombin-like enzyme leucurobin Proteins 0.000 description 1
- 240000007124 Brassica oleracea Species 0.000 description 1
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 235000011301 Brassica oleracea var capitata Nutrition 0.000 description 1
- 235000001169 Brassica oleracea var oleracea Nutrition 0.000 description 1
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 241000589565 Flavobacterium Species 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- ODKSFYDXXFIFQN-BYPYZUCNSA-N L-arginine Chemical compound OC(=O)[C@@H](N)CCCN=C(N)N ODKSFYDXXFIFQN-BYPYZUCNSA-N 0.000 description 1
- 229930064664 L-arginine Natural products 0.000 description 1
- 235000014852 L-arginine Nutrition 0.000 description 1
- 240000001929 Lactobacillus brevis Species 0.000 description 1
- 240000006024 Lactobacillus plantarum Species 0.000 description 1
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 description 1
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 1
- 241000192001 Pediococcus Species 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 229930003268 Vitamin C Natural products 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000001632 acidimetric titration Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000001838 alkalimetric titration Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 125000006615 aromatic heterocyclic group Chemical group 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 235000013736 caramel Nutrition 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- XMXOIHIZTOVVFB-JIZZDEOASA-L disodium;(2s)-2-aminobutanedioate Chemical compound [Na+].[Na+].[O-]C(=O)[C@@H](N)CC([O-])=O XMXOIHIZTOVVFB-JIZZDEOASA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 235000001727 glucose Nutrition 0.000 description 1
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 229940116298 l- malic acid Drugs 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 229960003512 nicotinic acid Drugs 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012457 nonaqueous media Substances 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000001139 pH measurement Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 235000020095 red wine Nutrition 0.000 description 1
- 239000006176 redox buffer Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/4166—Systems measuring a particular property of an electrolyte
- G01N27/4167—Systems measuring a particular property of an electrolyte pH
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9487981A JPS57208445A (en) | 1981-06-19 | 1981-06-19 | Buffer power titration method and apparatus therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH650863A5 true CH650863A5 (en) | 1985-08-15 |
Family
ID=14122332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH379882A CH650863A5 (en) | 1981-06-19 | 1982-06-21 | Method and apparatus for recording buffer capacity curves |
Country Status (3)
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0457989A1 (en) * | 1990-05-21 | 1991-11-27 | International Control Automation Finance S.A. | Titration curve estimation for adaptive pH control |
| FR2748112A1 (fr) * | 1996-04-30 | 1997-10-31 | Tlti Toute La Telephonie Ind | Procede pour determiner une proportion de reactant dans un liquide et appareil automatique correspondant |
| CN111766277A (zh) * | 2020-06-09 | 2020-10-13 | 安徽大学 | 一种区分金属离子Fe3+及Cu2+的方法 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5261848B2 (ja) * | 2009-08-19 | 2013-08-14 | 社団法人 おいしさの科学研究所 | 電気化学的緩衝能測定装置 |
-
1981
- 1981-06-19 JP JP9487981A patent/JPS57208445A/ja active Granted
-
1982
- 1982-06-18 DK DK275982A patent/DK162064C/da not_active IP Right Cessation
- 1982-06-21 CH CH379882A patent/CH650863A5/fr not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0457989A1 (en) * | 1990-05-21 | 1991-11-27 | International Control Automation Finance S.A. | Titration curve estimation for adaptive pH control |
| FR2748112A1 (fr) * | 1996-04-30 | 1997-10-31 | Tlti Toute La Telephonie Ind | Procede pour determiner une proportion de reactant dans un liquide et appareil automatique correspondant |
| CN111766277A (zh) * | 2020-06-09 | 2020-10-13 | 安徽大学 | 一种区分金属离子Fe3+及Cu2+的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DK275982A (da) | 1982-12-20 |
| DK162064C (da) | 1992-02-17 |
| DK162064B (da) | 1991-09-09 |
| JPS632465B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-01-19 |
| JPS57208445A (en) | 1982-12-21 |
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