CONTROL OF ADSORPTION AND SOLUBILITY IN GRADIENT HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY .3. SUDDEN-TRANSITION GRADIENT ELUTION OF STYRENE-ACRYLONITRILE COPOLYMERS

被引:15
作者
GLOCKNER, G [1 ]
WOLF, D [1 ]
ENGELHARDT, H [1 ]
机构
[1] UNIV SAARBRUCKEN,D-66123 SAARBRUCKEN,GERMANY
关键词
COLUMN LIQUID CHROMATOGRAPHY; COPOLY(STYRENE/ACRYLONITRILE); GRADIENT ELUTION; PRECIPITATION CHROMATOGRAPHY OF POLYMERS; SOLUBILITY OF POLYMERS;
D O I
10.1007/BF02269631
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Copolymers from styrene and acrylonitrile could be separated according to composition by gradient elution through methanol after injection into n-heptane and sudden addition of 50, 60, or 70 vol% tetrahydrofuran. The peak sequence was the same as with a common binary gradient n-heptane/tetrahydrofuran, i.e., retention increased with acrylonitrile content of the samples. With copolymers containing 37, 31, or 26% acrylonitrile, the elution characteristics in the ternary systems could be logically extrapolated towards the points measured in the corresponding binary gradient system.
引用
收藏
页码:749 / 755
页数:7
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