HPLC Determination of Surfactants and Related Compounds

  • Pavel Jandera
Part of the Contemporary Instrumentation and Analysis book series (CIA)

Abstract

Surfactants, or, more precisely, surface active agents are organic compounds or their technical mixtures that change the interfacial properties of liquids to which they are added. They are commonly used as emulsifying, dispersing, wetting, or foam-producing agents, widely used in household and industry, in textile, paper, leather and plastics manufacturing, as additives in food and cosmetic products and in various other application fields. From the chemical point of view, the molecules of surfactants are composed of a nonpolar (hydrocarbonaceous) part and of a highly polar part (one or more functional groups), which may be neutral or possess negative or (and) positive charges. Accordingly, surfactants are usually classified into four types: nonionic, anionic, cationic, and amphoteric. Some compounds act as ionic surfactants over a wide pH range; others, such as long chain carboxylic acids or amines, in a certain pH region only. A more detailed classification is given in Table 1.

Keywords

Foam Biodegradation Triglyceride Anthracene Lecithin 

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Copyright information

© The Humana Press Inc. 1984

Authors and Affiliations

  • Pavel Jandera
    • 1
  1. 1.Department of Analytical ChemistryUniversity of Chemical TechnologyPardubiceCzechoslovakia

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