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Preparative liquid chromatographic separation of the oligomers of nonoxynol-9 and their characterization by 1H-NMR and mass spectroscopy

✍ Scribed by D.Bruce Black; Brian A. Dawson; Jean-Claude Ethier; George A. Neville

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 470 KB
Volume: 8
Category: Article
ISSN: 0731-7085
DOI: 10.1016/0731-7085(90)80063-u

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✦ Synopsis

Conditions are described for the preparative LC separation of a bulk nonoxynol-9 material into 16 components. 1H-NMR analyses of these fractions provided evidence for all but the first of the components to be oligomers of nonylphenoxypolyethoxyethanol (nonoxynol) with n-values for (OCH2CH2)n ranging consecutively from 3 to 17, corresponding to the LC fractions 2-16. Mass spectral analysis of the separated LC fractions confirmed the oligomeric sizes deduced from 1H-NMR spectral data, and provided EI fragmentation information for these oligomeric substances.

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