CHEMOMETRIC CLASSIFICATION OF THE SOLVENT PROPERTIES (SELECTIVITY) OF COMMONLY USED GAS-CHROMATOGRAPHIC STATIONARY PHASES

被引：52

作者：

POOLE, SK ^{[1
]}

POOLE, CF ^{[1
]}

机构：

[1] WAYNE STATE UNIV, DEPT CHEM, DETROIT, MI 48202 USA

来源：

JOURNAL OF CHROMATOGRAPHY A | 1995年 / 697卷 / 1-2期

关键词：

D O I：

10.1016/0021-9673(94)00469-P

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Abraham's solvation parameter model was used to characterize the solvent properties of 33 stationary phases in terms of their capacity for specific intermolecular interactions at 121.4 degrees C. The capacity of the phases for dispersion, orientation, induction, and hydrogen-bond base interactions, combined with solvent cohesion (ease of cavity formation) were important in defining their behavior. The capacity for pi- and n-electron pair acceptor interactions was less important and none of the phases possessed a significant capacity for solvent hydrogen-bond acid interactions. Principal component analysis and hierarchical clustering techniques were used to classify the phases by their similarity for specific intermolecular interactions. These methods provide a visual means of quantitatively comparing the properties of the stationary phases and a mechanism to develop a short list of phases able to represent the range of properties available in the larger data set.

引用

页码：415 / 427

页数：13

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