著者

関矢 静男 辻 和郎 山中 実

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.28, no.7, pp.497-500, 1979-07-20 (Released:2009-11-10)

参考文献数

6

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A rapid method is described for the separation and determination of nonionic substances in detergents by use of a centrifugal chromatograph. The sample was placed on the center of a circular alumina disk and eluted with 300 ml of a mixed solvent, ethyl acetate/methanol (1 : 1, vol/vol), rotating the disk at 400 rpm. By this method nonionic substances such as alkyl poly (oxyethylene) ether and N, N-bis (2-hydroxyethyl) alkanamide in commercial detergents and shampoos were separated quantitatively within 10 min without the interference from coexisting anionic surfactants. The analytical results agreed with those obtained by the column chromatography on alumina.