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Application of nonaqueous capillary electrophoresis to the simultaneous analysis of anionic surfactants

โœ Scribed by Miriam Grob; Frank Steiner

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
120 KB
Volume
23
Category
Article
ISSN
0173-0835

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โœฆ Synopsis

In aqueous capillary electrophoresis selectivity between different alkyl chain lengths within one anionic surfactant-group markedly exceeds selectivity between different functionalities at a given chain length. Peak identification and quantitative analysis in complex mixtures is almost impossible, especially, if the sample contains ethoxylated surfactants as well. Applying nonaqueous capillary electrophoresis (NACE), significant differences in the mobilities of the various functionalities can be generated to exceed at satisfying separation. In this paper, method development of NACE systems is described and the application of these systems to anionic surfactant analysis in real sample matrices is documented.

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