1. Guangzhou Key Laboratory of Pullution Control and Isotope Application, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China 2. State Key Laboratory of Orgaric, Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
Abstract：Heavy metal elements of V, Cr, Mn, Co, Ni, Cu, Zn, Sr, Mo, Cd, Sb, Ba and Pb were determined by ICP-MS. The linear ranges of determination for these elements were obtained, and the correlation coefficients were larger than 0.997. The detection limit ranges were from 0.005 to 0.01 μg·L-1 and the RSDs were lower than 5%. Phase distributions of heavy metals in pyrite were analyzed by ICP-MS with sequential extraction procedure. The result showed that Pb was the main heavy metal in pyrite and its total content was 830 mg·kg-1. Pb existed mostly in carbonate or galena (PbS) phase of pyrite and the proportion was 56.9%. Pb existed less in iron oxides with 29.7% in proportion, and least in sulfide and silicate with 3.5% and 9.9%, respectively. The release of Pb in pyrite was primary in natural environment, but the release of Cr and Cd was not be ignorable, too.
Key words：ICP-MS;Sequential extraction procedure;Pyrite;Heavy metal;Phase distribution
张平1,2,齐剑英1,2,杨春霞1,陈永亨1*. 分级提取ICP-MS法考察黄铁矿中重金属的相态分布[J]. 光谱学与光谱分析, 2007, 27(06): 1207-1209.
ZHANG Ping1,2,QI Jian-ying1,2,YANG Chun-xia1,CHEN Yong-heng1* . Study on Phase Distribution and Release of Heavy Metal in Pyrite Using Sequential Extraction Procedure and ICP-MS . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(06): 1207-1209.
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