Partial molar properties from solute retention in supercritical fluid chromatography: thermodynamic framework, advantages, and limitations

被引：3
|
作者：
Roth, M [1 ]
机构：
[1] Acad Sci Czech Republ, Inst Analyt Chem, CS-61142 Brno, Czech Republic
来源：
FLUID PHASE EQUILIBRIA | 1998年 / 148卷 / 1-2期
关键词：
dilute near-critical mixtures; supercritical fluid chromatography; partial molar properties; fugacity coefficient; solute retention;
D O I：
10.1016/S0378-3812(97)00333-6
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The changes in chromatographic retention of a solute with the operating parameters such as pressure, temperature and composition of the mobile-phase fluid may be employed to measure the infinite-dilution partial molar volume of the solute in the mobile-phase fluid, the infinite-dilution partial molar enthalpy of the solute in the mobile-phase fluid, and the change of the infinite-dilution fugacity coefficient of the solute in a binary mobile-phase fluid with composition of the fluid. The theoretical background, benefits and limitations of this technique are discussed with emphasis on supercritical fluid chromatography. (C) 1998 Elsevier Science B.V. All rights reserved.
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页码：189 / 199
页数：11
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