NON-EQUILIBRIUM AND POLYDISPERSITY PEAK BROADENING IN THERMAL FIELD-FLOW FRACTIONATION

被引：35

作者：

MARTIN, M

MYERS, MN

GIDDINGS, JC

机构：

[1] Department of Chemistry, University of Utah, Salt Lake City, Utah

来源：

JOURNAL OF LIQUID CHROMATOGRAPHY | 1979年 / 2卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1080/01483917908060055

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

New theoretical procedures and an expanded data base have been combined to yield improved calculations for nonequilibrium plate height and polydispersity contributions in field-flow fractionation (FFF). Five thermal FFF column systems having a fourfold range in column width and length were operated with four solutes to yield eleven distinct channel-solute systems. After data were corrected for relaxation effects, comparison of experimental plate height measurements with theory showed good overall agreement for nonequilibrium parameter x. Calculated values of polydispersity agreed reasonably well with supplier's values. Data reliability has been discussed in relationship to column dimensions and experimental parameters. Copyright © 1979 by Marcel Dekker, Inc.

引用

页码：147 / 164

页数：18