Determination of copper,zinc and maganese in Ejiao by derivative flame atomic absorption spectrometry / 中国药学杂志

OBJECTIVE:To determine the contents of Cu,Zn and Mn in Ejiao,a kind of Chinese traditional medicine.METHOD:The contents of Cu,Zn and Mn were determined by derivative flame atomic absorption spectrometry (DFAAS) after digested by HNO3-HClO4.RESULTS:The contents of Cu,Zn and Mn were 10.48,12.38 and 18.09μg.g-1 respectively.CONCLUSIONS:The DFAAS possesses higher sensitivities,lower detection limits and better precision.

Progress in Studies of Environmental Organotin Pollution and Monitoring Method / 环境与健康杂志

Organotin compounds are extensively used in industry, agriculture, medicine and so on, but they may cause serious environmental pollution. Source of organotin in environment, impacts on human body, pollution to environment and methods of analysis were reviewed in the present paper.