SPECTROPHOTOMETRIC DETERMINATION OF ANILINE IN AIR AND WATER VIA OXIDATIVE COUPLING USING GUAIACOL

被引：11
|
作者：
AMLATHE, S [1 ]
GUPTA, VK [1 ]
机构：
[1] RAVISHANKAR UNIV,DEPT CHEM,RAIPUR 492002,MADHYA PRADESH,INDIA
来源：
MICROCHEMICAL JOURNAL | 1991年 / 43卷 / 03期
关键词：
D O I：
10.1016/S0026-265X(10)80007-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A sensitive spectrophotometric method is described for the submicrogram determination of aniline in water. The method involves the use of an oxidative coupling reaction for aniline and guaiacol using N-chlorosuccinimide as oxidizing agent in alkaline medium (pH 10 to 11). The blue-colored dye thus formed exhibits absorption maxima at 615 nm. Beer's law is valid up to 1 to 8 ppm of aniline in water. Molar absorptivity and Sandell's sensitivity are found to be 8.8 × 103 liters/mol/cm (±100) and 0.01 μg cm−2, respectively. The important parameters for complete color reaction have been optimized and applied for the analysis of aniline in polluted water. The method has been successfully applied for the determination of aniline in laboratory air after absorption in dilute hydrochloric acid. © 1991, Academic Press, Inc.. All rights reserved.
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页码：208 / 212
页数：5
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