Gas chromatographic analysis for alpha-olefin sulfonate |
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Authors: | Toshio Nagai Shigeru Hashimoto Izumi Yamane Akira Mori |
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Affiliation: | (1) Lion Fat and Oil Co., Ltd., 3-Chome, Hirai, Edogawaku, Tokyo, Japan |
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Abstract: | The separation and determination of alkene sulfonate and hydroxyalkane sulfonate, and the carbon chain distribution of the
lipophilic groups of long chain alpha-olefin sulfonates (C14 to C18) were studied by means of gas chromatography. Samples were hydrogenated initially, and converted to sulfonyl chlorides for
gas chromatographic analysis. Using a glass column, 4 mm i.d. and 2.5 m long, packed with Silicon SE-30, 3% on 60 to 80 mesh
Chromosorb WAW treated with hexamethyldisilazane, a 0.3 to 0.6 μl sample, as 10% carbon tetrachloride solution, was injected
directly on the column, and alkane and monochloroalkane sulfonyl chloride were determined as alkyl chloride and alkyl dichloride,
respectively. Minimization of further decomposition, improvement of peak separation and reproducibility were accomplished
by this procedure. The method was applied to alpha-olefin sulfonates produced commercially from C14 to C18 alpha-olefins. |
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