Ion-exchange properties of glutamic acid-bonded silica

被引：35

作者：

Elefterov, AI

Kolpachnikova, MG

Nesterenko, PN

Shpigun, OA

机构：

[1] Analytical Chemistry Division, Lomonosov Moscow Stt. Univ., L.

来源：

JOURNAL OF CHROMATOGRAPHY A | 1997年 / 769卷 / 02期

关键词：

mobile phase composition; temperature effects; organic modifiers; stationary phases; LC; metal cations;

D O I：

10.1016/S0021-9673(97)00035-6

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The chromatographic behaviour of alkali, alkaline earth and some transition metals on the glutamic acid-bonded silica stationary phase was investigated using dilute solutions of perchloric acid as eluent. The effect of different classes of organic modifiers as well as the influence of temperature on the retention of cations were studied. Sorption heats for cations under different conditions were calculated. These investigations allowed the chromatographic separation conditions, under which either complex forming or ion-exchange mechanisms prevail, to be determined.

引用

页码：179 / 188

页数：10

共 15 条

[1] THE EFFECT OF TEMPERATURE ON THE ION-EXCHANGE OF CD(II) AND PB(II) FROM WATERS [J].