A CHROMATOGRAPHIC ANALYSIS OF COMMERCIAL PRODUCTS OF ETHOXYLATED SULFONATES

被引：11

作者：

AUSTAD, T ^{[1
]}

FJELDE, I ^{[1
]}

机构：

[1] ROGALAND RES INST,N-4004 STAVANGER,NORWAY

来源：

ANALYTICAL LETTERS | 1992年 / 25卷 / 05期

关键词：

ETHOXYLATED SURFACTANTS; LIQUID CHROMATOGRAPHY; QUANTITATIVE ANALYSIS; ETHOXYLATED ISOMERS;

D O I：

10.1080/00032719208020049

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Commercial products of ethoxylated sulfonate surfactants are of current interest due to their tolerance towards hard water like sea-water. An analytical HPLC-method has been worked out which can detect and quantify the distribution of the various ethoxylated sulfonate isomers, R-(EO)x-SO3- (x = 2 - 15), at sea-water salinities. The different isomers of unconverted alcohols, R-(EO)x-OH, and other possible impurities, R-(EO)x-R, in the commercial product are also separated. The method has been worked out using a commercial product of the type C9-Ph-(EO)6-SO3Na and C8-Ph-(EO)3-SO3Na of two different suppliers. The chromatographic separation is based on a mixed-mode reversed-phase/ion-exchange column, and the analysis can be implemented as a quality-test of the commercial product.

引用

页码：957 / 971

页数：15