Medicinal Plant

2013, v.4(Z1) 13-15

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Determination of As,Hg,Se,Cd in Radix linderae by Hydride Generator-Atomic Fluorescence Spectrometry with Microwave Digestion
Determination of As,Hg,Se,Cd in Radix linderae by Hydride Generator-Atomic Fluorescence Spectrometry with Microwave Digestion

Xia LIU;Wei LI;Yechun DING;Xiaona FAN;

摘要(Abstract):

[Objective]To explore the method of determining heavy metal elements in Radix linderae and provide an efficient path for monitoring heavy metal pollution of traditional Chinese medicine. [Methods] Samples were processed with microwave digestion method. Then the content of As,Hg,Se and Cd was determined by Hydride Generation- Atomic Fluorescence Spectrometry. [Results]The adding standard recovery rates of elements were 96. 8%- 103. 9%. The RSD was less than 4%. The result indicated good precision and accuracy. The detection limits of various elements were 0. 05- 0. 36 ng / mL,which can meet the test requirement of inorganic element in Chinese herbal medicine. The contents of As,Hg,Se and Cd in Radix linderae did not exceed the limited range. [Conclusions]The method was simple,rapid and sensitive. The result was satisfactory when measuring samples with the method,so it could be used for popularization and application.

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基金项目(Foundation): Natural Science Fund Project of Jiangxi Province(2010GQY-0010)

作者(Author): Xia LIU;Wei LI;Yechun DING;Xiaona FAN;

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