m-Aminophenylarsonic acid as a reagent for the extraction preconcentration of phenol

The azocoupling reaction of phenol with the diazonium salt of m-aminophenylarsonic acid was used for the determination of phenol in water at a level of maximum permissible concentrations. The resulting compound is stable in a wide pH range, which made it possible to develop a procedure for the determination of phenol with the preconcentration of the azo compound by extraction to isobutanol at pH 2 and subsequent back extraction to the aqueous phase at pH ≥ 10. The high concentration coefficient of phenol (65) provides for determination of phenol down to 0.9 μg/L.

Авторы
Evtushenko Yu.M.1 , Ivanov V.M.2 , Zaitsev B.E. 3
Редакторы
-
Издательство
-
Номер выпуска
4
Язык
Английский
Страницы
310-312
Статус
Опубликовано
Подразделение
-
Номер
-
Том
57
Год
2002
Организации
  • 1 AOZT Elektroizolit, Sergiev-Posad, Moscow oblast, 143350, Russian Federation
  • 2 Department of Chemistry, Moscow State University, Vorob'evy gory, Moscow, 119899, Russian Federation
  • 3 Peoples Friendship University, ul. Ordzhonikidze 3, Moscow, 119517, Russian Federation
Ключевые слова
arsanilic acid; azo compound; diazonium compound; isobutanol; phenol; water; aqueous solution; article; chemical reaction; extraction; molecular stability; pH; physical phase
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/207/