Abstract:

After decomposition of Tibetan pharmaceuticals by either dry ashing method or wet digestion method, cadmium in Tibetan pharmaceuticals  was determined by graphite furnace atomic absorption spectrometry. The results indicated that  the method is simple, rapid and accurate with pretreating and determinating by wet digestion method. The extraction recoveries were between 95.0% and 103.0% with relative standard deviations of less than 1%.

Key words: graphite furnace atomic absorption spectrometry(GFAAS), Tibetan pharmaceuticals, cadmium

摘要：

采用湿法消解和干法灰化两种方法消解,通过石墨炉原子吸收光谱法检测藏药中镉的含量。实验发现,湿法消解处理测定样品的方法简便、快速、准确,回收率达到95.0%~103.0%,RSD小于1%。

关键词: 石墨炉原子吸收光谱法;藏药;镉