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Determination of Cadmium in Bivalve Molluscs by Microwave Digestion with Inductively Coupled Plasma-Mass Spectrometry

文献类型: 外文期刊

作者: Jin Gao-wa 1 ; Gong Qian 1 ; Cai You-qiong 1 ; Li Xiao-lei 1 ; Shi Yong-fu 1 ; Gu Run-run 1 ; Yang Qiao 1 ;

作者机构: 1.Chinese Acad Fishery Sci, E China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China

关键词: ICP-MS;microwave digestion;bivalve molluscs;cadmium

期刊名称:ADVANCED MEASUREMENT AND TEST, PTS 1-3

ISSN: 1022-6680

年卷期: 2011 年 301-303 卷

页码:

收录情况: SCI

摘要: A method based on microwave digestion and inductively coupled plasma-mass spectrometry (ICP-MS) has been established for the sensitive determination of cadmium in bivalve molluscs. The application of the internal standards calibration improved the accuracy and precision values of the method. The relative standard deviation (RSD), the standard addition recovery value and the detection limit were determined as 4.25%, 94.74% and 0.005 mu g/L, respectively. This method has been verified by the determination of cadmium in certified reference material kelp (GBW08517) and mussel (GBW08571). The method has been applied to determine the contamination concentration level of cadmium in seven kinds of bivalve mollusk samples. The results indicated that, among them, mud clam, scallop and oyster have relative high accumulation ability to cadmium.

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