Separation and preconcentration of metal ions and their estimation in vitamin, steel and milk samples using o-vanillin-immobilized silica gel

被引：46

作者：

Garg, BS ^{[1
]}

Sharma, RK ^{[1
]}

Bist, JS ^{[1
]}

Bhojak, N ^{[1
]}

Mittal, S ^{[1
]}

机构：

[1] Univ Delhi, Dept Chem, Delhi 110007, India

来源：

TALANTA | 1999年 / 48卷 / 01期

关键词：

o-vanillin; immobilized silica gel; metal ions; solid phase extraction; milk; steel; vitamin;

D O I：

10.1016/S0039-9140(98)00223-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

o-vanillin-immobilized silica gel has been used for the adsorption and estimation of copper, cobalt, iron and zinc by both batch and column techniques. Metal ions were quantitatively retained on the column packed with immobilized silica gel in the pH range 4.0-6.0 for Cu, 5.0-6.0 for Co, 4.5-6.0 for Fe and 6.0-8.0 for Zn. The distribution coefficient D determined for each metal was as follows (ml g(-1)): Fe, 5.4 x 10(2); Cu, 4.9 x 10(2); Zn, 4.4 x 10(2); Co, 3.8 x 10(2). Methods have been developed to estimate zinc, copper and cobalt in milk, steel and vitamin samples, respectively. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：49 / 55

页数：7

共 38 条

[1] 3-(TRIMETHOXYSILYL)-1-PROPANETHIOL SUPPORTED ON SILICA-GEL FOR THE SEPARATION AND PRECONCENTRATION OF COPPER AND CADMIUM IN WATER [J].