[Determination of six heavy metal elements in Zanthoxylum nitidum in twelve habitats of guangxi by ICP-AES].

Abstract

OBJECTIVE To determine the contents of six heavy metal elements in traditional Chinese medicine of Zanthoxylum nitidum in twelve habitats by ICP-AES. METHODS Nitric acid- perchloric acid mixed acid digested system was used to completely decomposed the organic compounds effectually. The As, Cr, Hg, Ni, Cd and Pb were determined by the absorption… (More)

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