SU1516936A1 - Coulometric determination of content of water in ketones coulometric method of determination of 2-chlor-5-[gamma-(2ъ,4ъ-ditretamylphenoxy) butyroylamino] anilide of pivalic acetic acid - Google Patents
Coulometric determination of content of water in ketones coulometric method of determination of 2-chlor-5-[gamma-(2ъ,4ъ-ditretamylphenoxy) butyroylamino] anilide of pivalic acetic acid Download PDFInfo
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- SU1516936A1 SU1516936A1 SU874354212A SU4354212A SU1516936A1 SU 1516936 A1 SU1516936 A1 SU 1516936A1 SU 874354212 A SU874354212 A SU 874354212A SU 4354212 A SU4354212 A SU 4354212A SU 1516936 A1 SU1516936 A1 SU 1516936A1
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- USSR - Soviet Union
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- determination
- coulometric
- acetic acid
- anilide
- butyroylamino
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Abstract
Изобретение относитс к анализу органических соединений. Цель изобретени - повышение чувствительности и селективности определени . Способ заключаетс в электрогенерировании брома на платиновом электроде при плотности тока от 0,5 до 20 ма/см2 в лед ной уксусной кислоте, содержащей 0,1-0,5 М HCLO4 и 0,001 М-0,05 (ET)4NBR, конечную точку титровани определ ют биамперометрически.This invention relates to the analysis of organic compounds. The purpose of the invention is to increase the sensitivity and selectivity of the determination. The method consists in electrogenerating bromine on a platinum electrode at a current density of 0.5 to 20 ma / cm 2 in glacial acetic acid containing 0.1-0.5 M HCLO 4 and 0.001 M-0.05 (ET) 4 NBR The end point of the titration is determined biamperometric.
Description
Изобретение относитс к области анализа органических соединений, а именно к способу определени 2-хлор- ,5 Lr-(2,4 -дитретамилфенокси)бутиро- иламино анилида пивалоилуксусной кислоты (АПК), и может быть использовано при проведении научных исследований, а также в контрольно-аналитических лаборатори х и при оценке качества цветных фотохимикатов.The invention relates to the field of analysis of organic compounds, namely to the method for the determination of 2-chloro, 5 Lr- (2,4-ditertamylphenoxy) butyryl-amino-anilide pivaloylacetic acid (APC), and can be used in scientific research, as well as in control and analytical laboratories and in assessing the quality of color photochemicals.
Целью изобретени вл етс повьше- ние чувствительности и селективности.The aim of the invention is to increase sensitivity and selectivity.
Дп определени конечной точки титровани используют амперометрию с двум платиновыми пол ризованными электродами (биамперометрию), причем величина разности потенциалов, налагаемых на индикаторные электроды, найденна экспериментально, составл ет 600 мВ.Dp of determining the end point of the titration is using amperometry with two platinum polarized electrodes (biamperometry), and the magnitude of the potential difference imposed on the indicator electrodes found experimentally is 600 mV.
В кулонометрическую чейку внос т 20 мл 0,2МНС104 и 0,005 М (Et)4N3r20 ml of 0.2MHS104 and 0.005 M (Et) 4N3r are added to the coulometric cell.
раствора уксусной кислоты, добавл ют 1 мл раствора АПК.acetic acid solution, add 1 ml of APC solution.
Устанавливают величину генераторного тока 2 мА, включают цепь биам- перометрической индикации и ведут генерацию брома, записыва изменение индикаторного тока во времени электролиза . По перегибу на кривой наход т точку эквивалентности. По закону Фара- де рассчитывают количество- найденного АПК.The value of the generator current is set to 2 mA, the biamperometric indication circuit is switched on, and bromine is generated by recording the change in the indicator current during electrolysis time. The inflection point on the curve is the equivalence point According to the Faradod law, the number of AIC found is calculated.
Предлагаема кулонометрическа методика вл етс экспрессной. Врем одного кулонометрического определени составл ет 1-5 мин. В одной чейке можно проводить до 3-4 определений. Соблюдение строгого температурного резкима необ зательно, взаимодействие брома и определ емого вещества в растворе протекает при комнатной температуре . Полученные результаты достаСПThe proposed coulometric technique is express. The time for one coulometric determination is 1-5 minutes. Up to 3-4 determinations can be made in one cell. Compliance with strict temperature cutting is not necessary, the interaction of bromine and the analyte in solution proceeds at room temperature. Results obtained are sufficient.
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Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874354212A SU1516936A1 (en) | 1987-11-25 | 1987-11-25 | Coulometric determination of content of water in ketones coulometric method of determination of 2-chlor-5-[gamma-(2ъ,4ъ-ditretamylphenoxy) butyroylamino] anilide of pivalic acetic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874354212A SU1516936A1 (en) | 1987-11-25 | 1987-11-25 | Coulometric determination of content of water in ketones coulometric method of determination of 2-chlor-5-[gamma-(2ъ,4ъ-ditretamylphenoxy) butyroylamino] anilide of pivalic acetic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1516936A1 true SU1516936A1 (en) | 1989-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874354212A SU1516936A1 (en) | 1987-11-25 | 1987-11-25 | Coulometric determination of content of water in ketones coulometric method of determination of 2-chlor-5-[gamma-(2ъ,4ъ-ditretamylphenoxy) butyroylamino] anilide of pivalic acetic acid |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1516936A1 (en) |
-
1987
- 1987-11-25 SU SU874354212A patent/SU1516936A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Агас н П.К. и др. Кулонометри- ческий метод анализа. - М.: Хими , 1984, с. 167. Верка А, и др. Новые редокс-методы в аналитической химии, - М.: Хими , 1968, с. 26, 108. * |
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