DETERMINATION OF ANIONIC SURFACTANT IN FRESH-WATER AND IN SEA-WATER

被引：3
|
作者：
HO, WH
LIN, BJ
机构：
[1] Department of Chemistry, National Chung Hsing University, Taichung
来源：
JOURNAL OF THE CHINESE CHEMICAL SOCIETY | 1993年 / 40卷 / 01期
关键词：
ANIONIC SURFACTANT; ION PAIR; EXTRACTION; SEA WATER;
D O I：
10.1002/jccs.199300005
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ion pairs formed from suitable cationic dye and anionic surfactant in water were separated by solvent extraction. The extracts were used subsequently for spectrophotometric determinations. The extraction of ion pairs with various combinations is described. Of the dyes and solvents examined, ethyl violet and p-xylene are the most useful combination as the cationic dye and extraction solvent. The extracts are determined spectrophotometrically at 611.5 nm; the molar absorptivity is 1.01 x 10(5) M-1 cm-1. The detection limit is 1.4 ppb in water. The method is simple, rapid and sensitive. It can also be applied to the determination of anionic surfactants in sea water..
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页码：29 / 32
页数：4
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