DETERMINATION OF CADMIUM IN ORTHOPHOSPHORIC ACID BY GRAPHITE-FURNACE ATOMIC-ABSORPTION SPECTROMETRY

被引：3
|
作者：
WIFLADT, AM
BYE, R
LUND, W
机构：
[1] UNIV OSLO,DEPT CHEM,POB 1033,N-0315 OSLO,NORWAY
[2] UNIV OSLO,DEPT PHARM,N-0316 OSLO,NORWAY
来源：
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1992年 / 344卷 / 12期
关键词：
D O I：
10.1007/BF00324649
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Cadmium has been determined in analytical-reagent grade orthophosphoric acids by direct graphite furnace atomic absorption spectrometry with Zeeman background correction. The detection limit was 3.0 pg cadmium, corresponding to 1.0 mug/l of cadmium in the concentrated acid. Most of the acids analyzed contained 2 - 5 mug/l of cadmium. The method was checked using electrochemical preconcentration of cadmium, followed by flame atomic absorption spectrometry.
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页码：541 / 544
页数：4
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