SIZE EXCLUSION CHROMATOGRAPHY FOR THE SEPARATION OF WHOLE COAL LIQUIDS

被引：17

作者：

HAUSLER, DW ^{[1
]}

HELLGETH, JW ^{[1
]}

MCNAIR, HM ^{[1
]}

TAYLOR, LT ^{[1
]}

机构：

[1] VIRGINIA POLYTECH INST & STATE UNIV,DEPT CHEM,BLACKSBURG,VA 24061

来源：

JOURNAL OF CHROMATOGRAPHIC SCIENCE | 1979年 / 17卷 / 11期

关键词：

Compendex;

D O I：

10.1093/chromsci/17.11.617

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Characterization of polystryene-divinylbenzene packing using low molecular weight compounds to determine mode and mechanism of separation in size exclusion chromatography (SEC) is described. Totally excluded and totally permeated molecular weights for four soft gels which differ only in percent crosslinking are determined. Tetrahydrofuran, pyridine, and chloroform were used as solvents. A large number of compounds, especially N-alkylated anilines, exhibited a non-size exclusion mechanism of separation. Exclusion limits for n-alkanes in pyridine were greater than in THF or CHCl//3. Results with these soft gels were compared with data obtained on rigid gels. The application of this model study to the size exclusion chromatography of various solvent refined coal fractions is described. 36 refs.

引用

页码：617 / 623

页数：7

共 35 条

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