Abstract：The Se in the blood and tissue of animal samples was determined by ICP-MS instrument. The method was not only proved simple and rapid, but also showed satisfying precision and low detection limit. The optimum conditions of ICP-MS for the method were investigated. Results by the digestion method, the isotopes selection, and the difference between the normal ICP-MS without ORS (Octopole Reaction System) and the ICP-MS with ORS were compared, which afford reference to the determination of the same kinds of sample. The standard materials were determined to proved the reliability of the normal ICP-MS and the ORS-ICP-MS methods. The ORS-ICP-MS can effectively remove the interference based on polyatomic ions, so the the detection limits were lowed, and the accuracy was improved. The detection limits of the method for normal ICP-MS is 0.024 ng·g-1 and that for ORS-ICP-MS is 0.004 6 ng·g-1, the RSDs are between 1.8% and 5.5%, and the recoveries of the method are in the range of 90.8%-107.2%.
王英锋1,刘翠梅1,刘少轻1,施燕支1*,陈玉红2. 普通/ORS模式-ICP-MS法测定动物血液和组织中硒的比较[J]. 光谱学与光谱分析, 2008, 28(09): 2173-2176.
WANG Ying-feng1,LIU Cui-mei1,LIU Shao-qing1,SHI Yan-zhi1*,CHEN Yu-hong2. Determination of Se in Blood and Tissue of Animal Samples by Normal ICP-MS and ICP-MS with Octupole Reaction System. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(09): 2173-2176.
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