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.

Authors
Evtushenko Yu.M.1 , Ivanov V.M.2 , Zaitsev B.E. 3
Editors
-
Publisher
-
Number of issue
4
Language
English
Pages
310-312
Status
Published
Department
-
Number
-
Volume
57
Year
2002
Organizations
  • 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
Keywords
arsanilic acid; azo compound; diazonium compound; isobutanol; phenol; water; aqueous solution; article; chemical reaction; extraction; molecular stability; pH; physical phase
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/207/