|
|||||
|
|
Coulometric titration of benzoic and isonicotinic acid derivatives of hydrazides and acylhydrazones |
|
| Authors: | O V Shlyamina N A Morozova G K Budnikov L P Sysoeva B I Buzykin |
| Institution: | (1) Butlerov Institute of Chemistry, Kazan State University, ul. Kremlevskaya 18, Kazan, 420008, Tatarstan, Russia;(2) Arbuzov Institute of Organic and Physical Chemistry, ul. Arbuzova 8, Kazan, 420029, Tatarstan, Russia |
| Abstract: | It was found that benzoic acid hydrazides rapidly and quantitatively react with electrogenerated chlorine and bromine under the conditions of galvanostatic coulometry. Benzoic acid hydrazides were determined in model solutions. A good precision (RSD varied from 1 to 6%) allowed coulometry to be applied to the determination of isonicotinic acid hydrazide in isoniazid tablets and isonicotinic acid 3-methoxy-4-hydroxybenzylidenehydrazide in phthivazid tablets. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |