CHARACTERIZATION OF THE OLIGOMERIC DISPERSION OF POLY(OXYALKYLENE)DIAMINE POLYMERS BY PRECOLUMN DERIVATIZATION AND CAPILLARY ZONE ELECTROPHORESIS WITH FLUORESCENCE DETECTION

被引：25

作者：

AMANKWA, LN ^{[1
]}

SCHOLL, J ^{[1
]}

KUHR, WG ^{[1
]}

机构：

[1] UNIV CALIF RIVERSIDE,DEPT CHEM,RIVERSIDE,CA 92521

来源：

ANALYTICAL CHEMISTRY | 1990年 / 62卷 / 20期

关键词：

D O I：

10.1021/ac00219a007

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The oligomer distribution of several poly(oxyalkylene)diamine (Jeffamine) polymers, ranging in molecular weight from 600 to 2000, has been characterized by precolumn derivatization and capillary zone electrophoresis with fluorescence detection. The separation mechanism is solely based on the differences between the electrophoretic mobilities of the oligomer units. The effect of the precolumn derivatization reaction on oligomer separation is also presented. Oligomer separation is only possible for a 1:1 (sample-derivatizing agent) derivatized sample. It is possible by this method to separate 30 oligomers with an average molecular weight of 600 which differ in size by only a methylene unit in less than 15 min with a separation efficiency of about 200 000 theoretical plates. © 1990, American Chemical Society. All rights reserved.

引用

页码：2189 / 2193

页数：5

共 31 条

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