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Ethylene oxide oligomer distribution in nonionic surfactants via high performance liquid chromatography (HPLC)

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Journal of the American Oil Chemists Society

Abstract

A high performance liquid chromatography (HPLC) method using adsorption columns combined with linear gradient elution has been developed for the determination of ethylene oxide (EO) distribution in nonionic surfactants. The quantitative ethoxylate adduct distribution in single-carbon-number and mixed-carbon-number primary alcohol-based samples can be obtained. The HPLC method is also applicable for determining the molar EO distributions in diverse ethylene oxide adduct compounds such as alkylphenol ethoxylates, branched alcohol ethoxylates and secondary alcohol ethoxylates. Nonionic surfactant samples containing adducts up to 25 mol have been successfully separated and the individual adducts quantitated.

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Authors and Affiliations

  1. Research and Development Department, Conoco Inc., Ponca City, OK

    M. C. Allen & D. E. Linder

Authors
  1. M. C. Allen
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  2. D. E. Linder
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Allen, M.C., Linder, D.E. Ethylene oxide oligomer distribution in nonionic surfactants via high performance liquid chromatography (HPLC). J Am Oil Chem Soc 58, 950–957 (1981). https://doi.org/10.1007/BF02659666

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  • DOI: https://doi.org/10.1007/BF02659666

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