火焰原子吸收光谱法测定黄芪微量元素含量  

Determination of Trace Elements Content in Astragali Radix by Flame Atomic Absorption Spectrometry

作　　者：徐琳[1] 胡久梅[1] 谢景毅[1] 成娟[1] 钱烨[1] 何岁寒 

机构地区：[1]西南交通大学生命科学与工程学院,四川成都610031

出　　处：《山东中医杂志》2014年第4期304-305,316,共3页Shandong Journal of Traditional Chinese Medicine

摘　　要：目的：建立火焰原子吸收光谱法测定黄蓖药材中的微量元素含量。方法：收集不同来源的黄芪药材，采用浓硝酸-高氯酸（4：1，v／v）混合溶液消解黄芪样品．用火焰原子吸收光谱法测定其中的Cu、Zn、Mn和Fe含量，共测定了5种黄芪样品的微量元素含量。结果：黄芪药材中微量元素含量由高到低依次为Fe〉Zn〉Mn〉Cu，其加标回收率为97．96％～102．18％。结论：该方法快速、灵敏，稳定性好，可供黄芪的微量元素含量测定使用。Objective：To establish a flame atomic absorption spectrometry（FAAS） method to determine con- tent of trace elements in Astragali Radix. Methods：Collect different sources of Astragali Radix medicinal herbs and use the mixed solution of HNO3 and HC104（4：1） to digest the samples. The contents of Cu,Zn, Mn,Fe in the sample solution were determined by FAAS. Five kinds of the content of trace elements in Astragali Samples were determined. Results：The content of trace element content in Astragali from high to low were Fe〉Zn〉Mn〉Cu,and the recovery rate of the method was 97.96%-102.18%. Conclusion：This method is rapid,sensitive,good stability,and available for determing trace elements in Astragali Radix.

关 键 词：黄芪 微量元素 火焰原子吸收光谱法 

分 类 号：R284.1[医药卫生—中药学]