DETERMINATION OF TRACE AMOUNTS OF COBALT AT SUB-MU-G 1(-1) LEVEL BY SOLID-PHASE SPECTROPHOTOMETRY

被引：21

作者：

FERNANDEZDECORDOVA, ML

MOLINADIAZ, A

PASCUALREGUERA, MI

机构：

[1] UNIV GRANADA,FAC EXPTL SCI,DEPT ANALYT CHEM,E-23071 JAEN,SPAIN

[2] UNIV GRANADA,FAC SCI,DEPT ANALYT CHEM,E-18071 GRANADA,SPAIN

来源：

ANALYTICAL LETTERS | 1992年 / 25卷 / 10期

关键词：

SOLID PHASE SPECTROPHOTOMETRY; COBALT DETERMINATION; 4-(2-PYRIDILAZO) RESORCINOL; BEERS; DRUGS; NATURAL WATERS;

D O I：

10.1080/00032719208018265

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A very sensitive method for the determination of trace amounts of cobalt has been developed, based on Solid-Phase Spectrophotometry (SPS). The method is based on the fixation of cobalt(II) as the 4-(2-pyridilazo)resorcinol complex on an anion-exchange resin. Resin phase absorbance is measured directly, and it allows the determination of cobalt (with a RSD of 2.4 %; in the range of 0.4 -3.8 μg 1-1. The method was applied to the determination of cobalt (II) in different samples, namely beers, drugs and waters. © 1992, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：1961 / 1980

页数：20

共 48 条

[1]

AKHMEDO SA, 1976, ZAVODSK LAB, V37, P756

[2] EINE NEUE METHODE ZUR ERMITTLUNG DER ZUSAMMENSETZUNG SCHWACHER KOMPLEXE [J].