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The Content of the Four Types of Harmful Elements in the Ten Kinds of Mongolian Medicine on the ICP-AES method
Pages: 28-32
Year: Issue:  11
Journal: Guangdong Trace Elements Science

Keyword:  Mongolian medicineICP-AESheavy metal elements;
Abstract: Objective The study on the contents of harmful elements( As,Pb,Hg,Cd) in Mongolian medicine is carried on with inductively coupled plasma-atomic emission spectrometry( ICP-AES).Methods after micro wave digestion with V( HNO3) + V( H2O2) = 5 + 3 mixture,under optimum conditions. Results The results showed that the detection limits were between 0. 048 ~ 1. 036 μg L-1,the average recoveries between 94. 5 to 103. 6% and RSD < 2. 4% for the four elements. Conclusion So the method is simple,rapid,accuracy and suitable for simultaneous determination of these elements in extruded food.
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