RAPID SEPARATION OF NONIONIC SURFACTANTS OF POLYETHOXYLATED OCTYLPHENOL AND DETERMINATION OF ETHYLENE-OXIDE OLIGOMER DISTRIBUTION BY C1 COLUMN REVERSED-PHASE LIQUID-CHROMATOGRAPHY

被引:24
作者
WANG, ZD
FINGAS, M
机构
[1] Emergencies Science Division, Environment Canada, Ottawa, K1A 0H3, River Rd. Environmental Technology Centre
来源
JOURNAL OF CHROMATOGRAPHY | 1993年 / 637卷 / 02期
关键词
D O I
10.1016/0021-9673(93)83207-9
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A rapid, simple and reproducible reversed-phase high-performance liquid chromatographic (HPLC) method was developed for the separation and characterization of individual oligomers in polyethoxylated octylphenol (PEOP) surfactants with high resolution and sensitivity, using a C1 trimethylsilyl (TMS) column. With this technique, oligomers of PEOP surfactants containing up to 40 ethylene oxide units (molecular mass distributions up to ca. 2000) were successfully resolved and identified. The oligomer distribution of the eight PEOP surfactants studied were calculated and depicted graphically. The effects of the mobile phase composition and of the solvents used to prepare PEOP surfactant solutions on the separation of oligomers were investigated in detail.
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页码:145 / 156
页数:12
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