Determination of cationic surfactants by capillary electrophoresis

被引：46

作者：

Heinig, K ^{[1
]}

Vogt, C ^{[1
]}

Werner, G ^{[1
]}

机构：

[1] UNIV LEIPZIG,INST ANALYT CHEM,D-04103 LEIPZIG,GERMANY

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1997年 / 358卷 / 04期

关键词：

D O I：

10.1007/s002160050454

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method is described for the separation of quaternary alkylbenzylammonium compounds as well as alkyl pyridinium salts by capillary electrophoresis using direct UV detection. The influence of the organic buffer modifier on the electrophoretic behaviour of the analytes is discussed. In addition to fused silica capillaries, also C8, C18 and neutral surface coatings are used. Separation is also performed in completely non-aqueous media. The results of method development are applied to the determination of cationic surfactants in cosmetics and pharmaceuticals. A comparison with HPLC with respect to efficiency, reproducibility and detection limits is presented.

引用

页码：500 / 505

页数：6

共 13 条

[1]

ACED G, 1991, LIQUIDCHROMATOGRAPHI

[2]

GYENES J, 1970, TITRATIONEN NICHTWAS

[3]

KALTOFEN R, 1980, TABELLENBUCH CHEM

[4]

KOSSWIG G, 1993, TENSIDE