An α-amino pyridine resin preconcentration method for iridium in environmental and geological samples

被引：12
作者：
Dai, XX
Chai, ZF
Mao, XY
Wang, JC
Dong, SA
Li, KZ
机构：
[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Lab Nucl Anal Tech, Beijing 100080, Peoples R China
[3] Inst Precious Met, Kunming 650221, Peoples R China
来源：
ANALYTICA CHIMICA ACTA | 2000年 / 403卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Ir; Au and Pd analyses; alpha-amino pyridine resin; ICP-MS; environmental and geological samples;
D O I：
10.1016/S0003-2670(99)00592-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The adsorption behavior of iridium on an cw-amino pyridine (AP) resin at very low Ir concentrations (0.24 ng ml(-1)) was studied by using the Ir-192 radiotracer technique. A preconcentration procedure was established, and the overall yield was 91.0 +/- 1.8% for Ir. Inductively coupled plasma mass spectrometry (ICP-MS) has been applied to the measurement of Ir in reference materials, and a good agreement between the reference values and our results was obtained. This method is also suitable for the analyses of trace Au and Pd in environmental and geological samples. (C) 2000 Elsevier Science B.V. All rights reserved.
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收藏
页码：243 / 247
页数：5
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