SU808929A1 - Polarographic method of detection of aliphatic sulphoacids - Google Patents
Polarographic method of detection of aliphatic sulphoacids Download PDFInfo
- Publication number
- SU808929A1 SU808929A1 SU792730364A SU2730364A SU808929A1 SU 808929 A1 SU808929 A1 SU 808929A1 SU 792730364 A SU792730364 A SU 792730364A SU 2730364 A SU2730364 A SU 2730364A SU 808929 A1 SU808929 A1 SU 808929A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- aliphatic
- sulphoacids
- detection
- polarographic method
- determination
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
(54) ПОЛЯРОГРАФИЧЕСКИЙ СПОСОБ ОПРЕДЕЛЕНИЯ АЛИФАТИЧЕСКИХ СУЛЬФОКИСЛОТ(54) POLAROGRAPHIC METHOD FOR DETERMINING ALIPHATIC SULPHONE ACIDS
Изобретение относитс к аналитической химии, а именно, к способу количественного определени алкилсульфокислот .Известен способ количественного определени алифатических сульфокислот потенциометрическим титрованием. Способ заключаетс в том, что алкилсульфокислоты подвергают титрованию в абсолютированном метиловом спирте раствором дифенилгуанидина. Чувствительность определени при этом составл ет . Присутствие воды в титруемой смеси более 4% снижает точность определени . Поэтому предъ вл ютс очень жесткие требовани к анализу,т.е. дл получени точных результатов существует необходимость выделени сульфбкислот из водных растворов экстракцией,, а абсолютирование метилового спирта This invention relates to analytical chemistry, in particular, to a method for the quantitative determination of alkyl sulfonic acids. A method is known for quantitative determination of aliphatic sulfonic acids by potentiometric titration. The method consists in that the alkylsulfonic acid is titrated in absolute methanol with a solution of diphenylguanidine. The sensitivity of the determination is in this case. The presence of water in the titration mixture of more than 4% reduces the accuracy of the determination. Therefore, very strict analysis requirements are imposed, i.e. To obtain accurate results, there is a need to isolate sulfic acids from aqueous solutions by extraction, and absolutizing methyl alcohol.
Таким образом, известный способ имеет существенные недостатки применительно к анализу производственных растворов.Thus, the known method has significant drawbacks in relation to the analysis of production solutions.
Также известен пол рографический способ определени органических кислот 2 .A polygraphic method for the determination of organic acids 2 is also known.
Однако пол рографические волны алкилсульфокислот ранее не.были зарегистрированы .However, the polarographic waves of alkylsulfonic acids were not previously registered.
Цель изобретени -повышение точности , чувствительности и экспресности S определении;алифатических сульфокислот, а также применение пол рографического метода анализа с The purpose of the invention is to increase the accuracy, sensitivity and expressiveness of the S definition; aliphatic sulfonic acids, as well as the use of the polarographic method of analysis with
0 использованием ртутнокапельного электрода.0 using a mercury-droplet electrode.
Дл достижени поставленной цели раствор ют навески анализируемой пробы в фоновом растворе, содержащем (0,2-0,4)М хлорида лити в этаноле To achieve this goal, the samples of the sample to be analyzed are dissolved in a background solution containing (0.2-0.4) M lithium chloride in ethanol
5 и пол рографируют полученный раствор в интервале напр жений от -1,2 до -1,8 В с последующим расчетом количества определ е1«ых сульфокислот по предельному току известными емами. Чувствительность анализа составл ет М.5 and polarize the resulting solution in the voltage range from -1.2 to -1.8 V, followed by calculating the amount of determined sulfonic acid by the current limit by known ems. The sensitivity of the analysis is M.
Способ основан на реакции электрохимического восстановлени алифатических сульфокислот на ртутном The method is based on the reaction of electrochemical reduction of aliphatic sulfonic acids on mercury
5 капельном электроде на фоне 0,3 М хлорида лити в этаноле (96%) . Определение возможно также в водноэтанольных растворах, содержащих до 50% этанола по объему, электрод срав05 drip electrode on the background of 0.3 M lithium chloride in ethanol (96%). The determination is also possible in water-ethanol solutions containing up to 50% ethanol by volume, the electrode is compared with
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792730364A SU808929A1 (en) | 1979-02-28 | 1979-02-28 | Polarographic method of detection of aliphatic sulphoacids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792730364A SU808929A1 (en) | 1979-02-28 | 1979-02-28 | Polarographic method of detection of aliphatic sulphoacids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU808929A1 true SU808929A1 (en) | 1981-02-28 |
Family
ID=20812547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792730364A SU808929A1 (en) | 1979-02-28 | 1979-02-28 | Polarographic method of detection of aliphatic sulphoacids |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU808929A1 (en) |
-
1979
- 1979-02-28 SU SU792730364A patent/SU808929A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Adams et al. | Chronopotentiometric studies at solid electrodes | |
| Lawson et al. | Specific cleavage of methionyl peptides | |
| SU808929A1 (en) | Polarographic method of detection of aliphatic sulphoacids | |
| Bowers et al. | Polarographic Behavior of Aryl Sulfones and Sulfoxides | |
| JPH0250424B2 (en) | ||
| Austin | 32. The deamination of amino-acids by nitrous acid with particular reference to glycine. The chemistry underlying the Van Slyke determination of α-amino-acids | |
| Barek et al. | Determination of carcinogenic azobenzene derivatives by constant-potential coulometry | |
| SU466451A1 (en) | Method for quantitative determination of organic substances containing carbon-carbon double bonds | |
| SU1408343A1 (en) | Method of identifying gold (iii) in electrolyte solutions | |
| RU2768229C1 (en) | Method for quantitative determination of salicin by voltammetry on a glass-carbon electrode | |
| RU2757540C1 (en) | Method for voltammetric determination of 2,4-dinitrophenol in water and water bodies | |
| RU2243553C1 (en) | Method of determining 4-aminobenzoic acid in aqueous solutions | |
| RU2537168C1 (en) | Voltametric method for quantitative determination of benzoic acid | |
| SU994417A1 (en) | Method for detecting iron (iii) | |
| Hetman | Oscillopolarographic Determination of Tetranitromethane in Nitromethane | |
| SU150506A1 (en) | The method of quantitative determination of tetramethylthiuram disulfide in technical thiuram E | |
| SU1065763A1 (en) | Tetraethylthiuramsuphide electroanalytical determination method | |
| SU1013835A1 (en) | 2-mercaptobenzotiasole polarographic determination method | |
| SU556378A1 (en) | Method for separate quantitative determination of purine and derivatives of purine, pyrimidine in their mixture | |
| SU1434353A1 (en) | Method of potentiometric measurement of hydrocyanic acid concentration in air | |
| SU414523A1 (en) | METHOD OF QUANTITATIVE DETERMINATION OF MERCAPTANS IN INDUSTRIAL AND WASTE WATER | |
| SU551010A1 (en) | Method for determining potassium in plants | |
| Zuman | Mutual interactions between electrochemistry, organic chemistry and biological sciences | |
| SU1097931A1 (en) | Method of determination of 4-methoxyphenylthiocarbamide,thiocarbamide and 4,4'-dimethoxyphenylthiocarbamide | |
| SU1642358A1 (en) | Coulometric method of determination of p-tolylphosphine |