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Ionic liquid as extraction agent for detection of volatile phenols in wastewater and its regeneration
Author(s) -
Ni Huiqiong,
Dong Jie,
Shi Jianjun,
Wang Wei
Publication year - 2010
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200900730
Subject(s) - ionic liquid , hexafluorophosphate , oxidizing agent , reagent , phenols , chemistry , extraction (chemistry) , wastewater , chloroform , chromatography , organic chemistry , environmental engineering , environmental science , catalysis
Volatile phenols in the wastewater provide a basic parameter of the pollution. Spectrophotometric method based on the reactions of the individual phenols with 4‐aminoantipyrine in the presence of an oxidizing agent is the current official analytical method in many countries. In this paper, we propose a method for extracting the resultant colored dye with ionic liquid 1‐butyl‐3‐methylimidazolium hexafluorophosphate instead of chloroform. The results revealed excellent extraction efficiency, and the used ionic liquid could be regenerated easily. The method with small volume green reagent could be potentially applied in portable devices for in situ environmental analysis.