Comparison the Content s of Heavy Metals and Harmful Elements in Dioscoreae Rhizoma by ICP-MS
Objective:To compare the contents of five heavy metals and harmful elements(Cu,Pb,As,Cd and Hg)in Maoshanyao and Guangshanyao.Methods:The sample solution was prepared by microwave digestion,and the contents of Cu,Pb,As,Cd and Hg were determined by inductively coupled plasma mass spectrometry(ICP-MS)with Germanium,indium and bismuth as internal standard.Results:The linear relationships of Cu,Pb,As,Cd and Hg were good(r≥0.999 5),and the recoveries were 82.4％-103.6％.RSD range was 2.4％to 5.9％.The content determination results showed that compared with Maoshanyao,the content of five heavy metals and harmful elements in Guangshanyao significantly decreased,and the proportion of copper residue reduction was 60.41％-73.57％.Conclusion:Compared with Maoshanyao,Guangshanyao contains lower levels of heavy metals and harmful elements residues.
Dioscoreae RhizomaMaoshanyaoGuangshanyaoHeavy metals and harmful elementsInductively coupled plasma mass spectrometry(ICP-MS)
万方数据
维普
