EXPERIMENTAL-DETERMINATION OF ENHANCEMENT FACTORS FROM SUPERCRITICAL-FLUID CHROMATOGRAPHY

被引：32

作者：

BROWN, BO

KISHBAUGH, AJ

PAULAITIS, ME

机构：

[1] Univ of Delaware, Newark, DE, USA, Univ of Delaware, Newark, DE, USA

来源：

FLUID PHASE EQUILIBRIA | 1987年 / 36卷

关键词：

AROMATIC COMPOUNDS - EQUATIONS OF STATE - HYDROCARBONS - Aromatic - THERMODYNAMIC PROPERTIES;

D O I：

10.1016/0378-3812(87)85027-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An experimental technique is described which involves the application of SCF chromatography to predicting enhancement factors in supercritical fluids at elevated pressures. We consider an important step in the development of this application: the determination of solute fugacities in the stationary phase of the chromatograph column. Experimental results are presented for chromatographic retention times of several aromatic hydrocarbons in a column with supercritical CO//2 as the carrier fluid and a stationary phase of octadecylsilica particles. The measurements are used to determine the mechanism of solute retention in the column, and to develop a thermodynamic correlation for predicting solute fugacities in the stationary phase.

引用

收藏

页码：247 / 261

页数：15

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