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题名: A rapid thin-layer chromatographic method for comparison of different ethoxylation products in the manufacture of non-ionic surfactants
作者: Zhang, J;  Lin, LM;  Wang, YS;  Xu, GX;  Zhao, YJ
关键词: thin-layer chromatography ;  non-ionic surfactants ;  polyoxyethylene ethers ;  ethoxylation products
刊名: CHROMATOGRAPHIA
发表日期: 1998
卷: 47, 期:1-2, 页:98-100
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biochemical Research Methods ;  Chemistry, Analytical
研究领域[WOS]: Biochemistry & Molecular Biology ;  Chemistry
英文摘要: A rapid thin-layer chromatographic method has been developed for comparing the different ethoxylation products during the manufacture of non-ionic surfactants. The ethoxylation products are separated on silica gel layers with ethyl acetate-acetone-water (12:5:0.5) as mobile phase. The chromatograms were visualized by exposure to iodine vapor for 3 min; densitometric scanning was then performed at 460 nm in reflectance mode and plates were evaluated by use of RF values and peak-area data. The separation conditions were investigated and optimized. The average numbers of the oxyethyl groups in the molecules of the adducts, and their distribution curves, were determined and used as criteria for monitoring the extent of ethoxylation of the intermediates and the final products. The method is recommended for the purpose because of the advantageous features of TLC.
语种: 英语
WOS记录号: WOS:000071631000017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138518
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116012, Peoples R China
2.Fusun Plant Alcohol & Ether Chem, Fusun 11309, Peoples R China

Recommended Citation:
Zhang, J,Lin, LM,Wang, YS,et al. A rapid thin-layer chromatographic method for comparison of different ethoxylation products in the manufacture of non-ionic surfactants[J]. CHROMATOGRAPHIA,1998,47(1-2):98-100.
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