小秦艽中汞、砷微波消解ICP-AES测定法的建立

ESTABLISHMENT A METHOD OF DETERMINATION MERCURY AND ARSENIUM IN GENTIANA DAHURICA FISCH BY ICP-AES WITH MICROWARE DIGESTION

目的建立小秦艽中汞、砷元素含量测定方法。方法采用微波消解电感耦合等离子体-原子发射光谱法同时测定小秦艽中汞和砷两种金属元素。结果小秦艽中的汞和砷的含量分别为0.21%和0.09%。汞和砷加样回收率分别为83.33%和90.00%,精密度RSD为1.02%和3.15%。结论本法简便、灵敏、准确,可用于中药小秦艽的质量控制。

Objective To develop a simple,sensitive and rapid method for the determination of mercury and arsenium in Gentiana dahurica Fisch.Methods mercury and arsenium were determined by ICP-AES with microware digestion in Gentiana dahurica Fisch.Results The content of mercury and arsenium were 0.21% and 0.09% respectively in Gentiana dahurica Fisch.The recovery of mercury and arsenium were 83.33% and 90.00% respectively,and the RSD were 1.02% and 3.15% respectively.Conclusion The result shows that the method is sensitive,accurate and simple,and can be used to control the quality of Gentiana dahurica Fisch.