CHEMICALLY BONDED ARYL ETHER PHASE FOR THE HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHIC SEPARATION OF AROMATIC NITRO-COMPOUNDS

被引：39

作者：

MOUREY, TH ^{[1
]}

SIGGIA, S ^{[1
]}

机构：

[1] UNIV MASSACHUSETTS,DEPT CHEM,AMHERST,MA 01003

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 06期

关键词：

D O I：

10.1021/ac50042a042

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A chemically bonded aryl ether stationary phase which shows novel selectivity in the reverse-phase liquid chromatographic separation of aromatic nitro compounds has been prepared. Differentiation between nitroaromatic isomers is a result of partitioning and charge transfer interactions. Comparisons with octadecyl and phenyl silica show both the differences and the advantages of the aryl ether phase. A modified Hammett equation is used to relate retention to electrophilic aromatic substitution rates for meta- and para-substituted compounds. Absorption spectra of the charge transfer complexes involved are presented, and the significance of the complexation is discussed in terms of its effect on chromatographic behavior. © 1979, American Chemical Society. All rights reserved.

引用

页码：763 / 767

页数：5

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