火焰原子吸收法测定不同产地土牛膝中铜含量  

Determination of copper in Achyranthes aspera L from different habitats by flame atomic absorption spectrophotometry

作　　者：魏得良[1] 黄志红[1] 黄秀英[1] 刘伟[1] 郭皖北[2] 

机构地区：[1]湘南学院化学与生命科学系,湖南郴州423000 [2]中南大学代谢内分泌研究所,湖南长沙410011

出　　处：《中国医院药学杂志》2010年第10期823-825,共3页Chinese Journal of Hospital Pharmacy

基　　金：湖南省教育厅科研基金资助项目(编号:05C630);湖南省科技厅科研基金资助项目(编号:06FJ4099)

摘　　要：目的：建立火焰原子吸收分光光度法测定不同产地土牛膝中铜的含量。方法：土牛膝采用湿法消解后用火焰原子吸收光谱法测定。结果：标样中铜的浓度与吸光度呈良好的线性关系（r=0．9999），检出限为0．0018mg·L-1，RSD为0．05％～5．0％，加标回收率为101％-105％，结论：本方法简单易行，方便快捷，灵敏度和精密度高，选择性好。OBJECTIVE To establish the method to determine copper in Achyranthes aspera L from different habitats by flame atomic absorption spectrophotometry. METHODS The Achyranthes aspera L digested by wet digestion and determined by atomic fluorescence spectrometer. RESULTS The concentration of copper was linear with the absorbancy, with a related coefficient of 0. 999 9 and the detection limit of this method was 0. 001 8 mg. L -1. The relative standard deviation was 0. 05% - 5. 0% （n = 10）. The recoveries were in the range of 101 % - 105%. CONCLUSION The method is simple,accurate and sensitire and the results are therefore satisfactory.

关 键 词：火焰原子吸收光谱 铜 土牛膝 不同产地 

分 类 号：R927.2[医药卫生—药学]