Solvent extraction-photometric determination of anionic surfactants using chromatomembrane preconcentration

被引：0
|
作者：
Moskvin, LN
Mikhailova, NV
Nikolaeva, DN
机构：
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 1996年 / 51卷 / 08期
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中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A chromatomembrane method for preconcentrating anionic surfactants is proposed. The extraction-chromatographic process is accomplished in a cell made of porous poly(tetrafluoroethylene). The volume of the chloroform eluate is 5 mt. The calibration plot is linear in a concentration range of 3 to 40 mu g lauryl sulfate. The detection limit is 8 mu g/L for a 100-mL sample; the time of one analysis is 7 min. The procedure exhibits a satisfactory precision and a negligible systematic error.
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页码：779 / 781
页数：3
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