Analysis of amphoteric surfactants by liquid chromatography with post-column detection : III. Salt-free-type imidazoline amphoteric surfactants

Salt-free-type imidazoline amphoteric surfactants were analysed by reversed-phase high-performance liquid chromatography with ultraviolet and/or post-column detection. The active ingredients of the surfactants were isolated and identified directly by field desorption mass spectrometry and some speci...

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Bibliographic Details
Published in:Journal of Chromatography A 1983, Vol.267 (1), p.149-166
Main Authors: Kawase, Jiro, Tsuji, Kazuro, Yasuda, Yutaka
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
Gas chromatographic methods
Other chromatographic methods
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Summary:Salt-free-type imidazoline amphoteric surfactants were analysed by reversed-phase high-performance liquid chromatography with ultraviolet and/or post-column detection. The active ingredients of the surfactants were isolated and identified directly by field desorption mass spectrometry and some specific chemical reaction techniques. Use of the method has clarified the reaction pathways by which the compounds are transformed and demonstrated the specificity of the proposed post-column detection in commercial products analysis. By this method, information on the alkyl-chain distribution of the orginal fatty acids, the degree of substitution by electrophilic reactants and the reaction process and conditions under which the surfactants were prepared can be obtained.
ISSN:0021-9673
DOI:10.1016/S0021-9673(01)90828-3