Preconcentration and determination of trace metals in seawater using a thiol cotton fiber minicolumn coupled with inductively coupled plasma mass spectrometry
文献类型： 外文期刊
作者： Zhang, SZ 1 ; Lu, AX 2 ; Han, F 2 ; Shan, XQ 2 ;
作者机构： 1.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China; Natl Engn Res Ctr Informat Technol Agr, Beijing 100089, Peoples R China
期刊名称：ANALYTICAL SCIENCES （ 影响因子：2.081； 五年影响因子：1.676 ）
ISSN： 0910-6340
年卷期： 2005 年 21 卷 6 期
页码：
收录情况： SCI
摘要： A rapid separation and preconcentration method was developed for the determination of trace metals Cu, Zn, Cd, and Pb in seawater using a minicolumn packed with thiol cotton fiber (TCF) coupled with inductively coupled plasma mass spectrometry (ICP-MS). Preconcentration parameters, such as seawater sample volume and flow rate and eluent hydrochloric acid concentration, volume and flow rate, were optimized. Under the optimized conditions, trace metals Cu, Zn, Cd, and Pb in seawater can be determined with no interference from saline matrices. When a sample volume of 1500 ml and a sample flow rate of 15 ml min(-1) were used, the preconcentration factor of 1500 and RSD value of < 7% at ng ml(-1) were achieved. The accuracy of the recommended method was verified by the analysis of certified reference materials.
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