Determination of trace amounts of mercury, lead and cadmium in steels by ICP-MS after ion exchange chromatographic separation

被引：9
|
作者：
Fujimoto, K
Chino, A
机构：
[1] JFE Steel Corp, Steel Res Lab, Chuo Ku, Chiba 2600835, Japan
[2] JFE Steel Corp, Steel Res Lab, Kawasaki Ku, Kawasaki, Kanagawa 2100855, Japan
来源：
BUNSEKI KAGAKU | 2006年 / 55卷 / 04期
关键词：
cation exchange chromatographic separation; trace mercury; lead and cadmium in steel; simultaneous analysis by ICP-MS;
D O I：
10.2116/bunsekikagaku.55.245
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Trace amounts of mercury, lead, and cadmium at a level of ng g(-1) in steel were determined by ICP-MS after cation-exchange chromatographic separation. The sample was decomposed with nitric acid, and the analytes were separated from the iron matrix in 1 M hydrofluoric acid solution, Using the cation-exchange resin packed in a mini-column. The elements adsorbed on the resin were eluted by 8 M hydrochloric acid solution and determined by ICP-MS simultaneously. he lower limits of detection based on 3 sigma of blank values were 2 ng g(-1) for mercury, 9 ng g(-1) lead, and 0.5 ng g(-1) for cadmium.
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页码：245 / 249
页数：5
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