SIZE-EXCLUSION CHROMATOGRAPHY OF STRONG POLY-ELECTROLYTES ON POROUS-GLASS COLUMNS

被引：43

作者：

DUBIN, PL

TECKLENBURG, MM

机构：

[1] Indiana-Purdue Univ, Dep of, Chemistry, Indianapolis, IN, USA, Indiana-Purdue Univ, Dep of Chemistry, Indianapolis, IN, USA

来源：

ANALYTICAL CHEMISTRY | 1985年 / 57卷 / 01期

关键词：

POLYELECTROLYTES; -; POLYMERS;

D O I：

10.1021/ac00279a063

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The exclusion chromatography of sodium poly(styrene-sulfonate) (NaPSS) on controlled pore glass was studied at varying pH and ionic strengths. The divergence of the molecular weight calibration curves of NaPSS from those of the nonionic polymers dextran and pullulan may be ascribed to two types of electrostatic effects: intramolecular chain expansion and polyion-substrate repulsion. Resolution of these two effects was achieved through 'universal calibration' plots, which adjust for differences in chain dimensions.

引用

页码：275 / 279

页数：5

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