COMPUTER-SIMULATION STUDY OF MULTIDETECTOR SIZE-EXCLUSION CHROMATOGRAPHY OF BRANCHED MOLECULAR-MASS DISTRIBUTIONS

被引：18

作者：

JACKSON, C

机构：

[1] E.I. du Pont de Nemours and Company, Central Research and Development, Experimental Station, Wilmington, DE 19880-0228

来源：

JOURNAL OF CHROMATOGRAPHY A | 1994年 / 662卷 / 01期

关键词：

D O I：

10.1016/0021-9673(94)85290-1

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Size-exclusion chromatography (SEC) provides a rapid method for determining molecular mass distributions relative to standard calibration materials. If light-scattering and viscosity detectors are used independent measurements of molecular mass and size can be obtained directly, and these can be used to estimate the distribution of branching across the molecular mass distribution. In order to study the effect of branching on the detector signals and the calculated results a computer simulation of the multiple detector SEC analysis of randomly branched polymers was developed. The model is described and results for different amounts of branching, different extents of reaction, and different models of the hydrodynamic size are discussed.

引用

页码：1 / 12

页数：12

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