Inorganic salts as hold-up time markers in C18 columns

被引：33

作者：

Oumada, FZ ^{[1
]}

Rosés, M ^{[1
]}

Bosch, E ^{[1
]}

机构：

[1] Univ Barcelona, Dept Quim Analit, E-08028 Barcelona, Spain

来源：

TALANTA | 2000年 / 53卷 / 03期

关键词：

hold-up time; reversed phase liquid chromatography; inorganic salts; C-18; columns;

D O I：

10.1016/S0039-9140(00)00556-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A systematic study of the retention behaviour in a C-18 reversed phase liquid chromatography (RPLC) system of several inorganic salts, namely NaNO2, NaNO3, KBr, Bu4NBr and K2Cr2O7, is presented. The behaviour of the markers in unbuffered mobile phases and the marker retention dependence on the pH and ionic strength of the buffered mobile phases have been analyzed. In addition, a comparison between the retention behaviour of the markers and several ionizable analytes in buffered eluents is presented. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：667 / 677

页数：11

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