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In this paper, the determination of trace lead in foods by optical temperature control GFAAS was studied. The method was certified by the analysis of the national standard reference materials.
The determination of As, Hg and Mo in the composite Chinese traditional medicines such as niuhuang jiedu tablets etc. Indicates the existence of As, Hg and Mo in these medicines. The relation between these elements and the efficacy of the medicines was studied, showing that these elements play an important role in the efficacy of the drugs.
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