摘要
本文报道了采用国产D412螯合树脂的在线微型螫合树脂柱预富集分离ICP-AES法测定痕量镉的技术,选择了最佳的在线预富集条件,对生物标准参考物质中的痕量镉进行了测定,结果与标准值吻合。
On-line preconcentration ICP-AES was used to determine the trace amounts of cadmium in biological samples.The column material was D412 chelating resin in 50-60mesh.The experimental conditions including the PH of sample solution,the acidity of eluant,and the flow rates of sample solution and eluant were optimized.The detection limit was 1.7ng/ml. The enrichment factor at 5 ml loading volume was 4.1,Cadmium in bovine liver (BCR CRM 185) was measured by the method and in good agreement with the certified value.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1994年第6期65-70,共6页
Spectroscopy and Spectral Analysis
基金
中国科学院留学人员基金
关键词
分离
富集
螯合树脂
生物试样
镉
On-line preconcentration,Cadmium, Chelating resin, Biological sample