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《Jilin Geology》 2013-04
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Determination of Chromium,Cadmium,Lead in corn sample by ICP-MS using microwave digestion

LI Guan-hong;GONG Hai-juan;Institute of Geological Sciences of Jilin Province;  
Studies the method to determine heavy-metal elements in the corn,by ICP-MS using microwave digestion.Microwave sample preparation,mass spectrograph interference deduction and calibration are discussed in detail.In the optimized conditions,according to analysis results of national standard reference materials(GBW10012),evaluate the accuracy of method.The detection limit:Cd:0.003μg/g,Cr:0.04μg /g,Pb:0.1 μg/g,the relative standard deviation 2.5%~6.0%,and the recovery rate 90.9%~104.9%.
【CateGory Index】: X835
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