Analysis of cationic surfactants by capillary electrophoresis

被引：50

作者：

Piera, E ^{[1
]}

Erra, P ^{[1
]}

Infante, MR ^{[1
]}

机构：

[1] CSIC,CID,DEPT TECNOL TENSIOACTIVOS,ES-08034 BARCELONA,SPAIN

来源：

JOURNAL OF CHROMATOGRAPHY A | 1997年 / 757卷 / 1-2期

关键词：

quaternary ammonium compounds; surfactants; N-benzyl-N-alkyl-N; N-dimethylammonium chloride;

D O I：

10.1016/S0021-9673(96)00663-2

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Capillary zone electrophoresis was applied to the analysis of N-benzyl-N-alkyl-N,N-dimethylammonium chloride compounds with different alkyl chain lengths (C-12-C-18) by direct UV detection. A tetrahydrofuran-containing buffer was used to prevent the occurrence of micellization and adsorption of the surfactants, thereby yielding adequate separations according to their free-form electrophoretic mobilities. Resolution, theoretical plate number, reproducibility and precision were ascertained. Finally, the electrophoretic method was applied to the qualitative and quantitative determination of an industrial mixture of C-n-benzyl surfactants.

引用

页码：275 / 280

页数：6

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