Extractive spectrophotometric determination of non-ionic surfactants in water.

@article{Tei1982ExtractiveSD,
  title={Extractive spectrophotometric determination of non-ionic surfactants in water.},
  author={Kyoji T{\^o}ei and Shoji Motomizu and Takaaki Umano},
  journal={Talanta},
  year={1982},
  volume={29 2},
  pages={103-6}
}
The solvent extraction of non-ionic surfactants with potassium chloride and tetrabromophenolphthalein ethyl ester potassium salt has been studied, and a method developed for determining trace amounts of non-ionic surfactants in water spectrophotometrically. Various non-ionic surfactants of general type RO(CH(2)CH(2)O)(n)H (where R is an alkyl or alkylphenyl group and n is the number-average degree of polymerization) are extracted quantitatively into o-dichlorobenzene from the water sample, and… CONTINUE READING