火焰原子吸收法测定中草药海金沙茎中五种金属元素的含量  

Determination of Six Trace Elements in Lygodium japonicum( Thunb. ) Sw. by FAAS

作　　者：张剑[1] 廖建华[1] 李银保[1] 刘海[1] 

机构地区：[1]赣南医学院药学院,江西赣州341000

出　　处：《广东微量元素科学》2014年第12期22-25,共4页Trace Elements Science

基　　金：江西省教育厅科技项目(GJJ10698);江西省卫生厅中医药项目(2011A153)

摘　　要：目的运用火焰原子吸收光谱法测定中草药海金沙茎中的Fe、zn、Mg、Ca、Cu5种微量元素的含量。方法用浓HNO3-HCIO4消解样品，采用标准曲线法测定其5种金属元素含量。结果所测的样品中含有丰富的人体必需微量元素。方法回收率在98.68％～104.4％之间，样品相对偏差小于5％。结论该法快速简便、重复性好、准确度好，适用于同类生物样品中微量元素的测定，结果令人满意。Objective The contents of Fe, Zn, Mg, Ca and in Lygodium japonicum （ Thunb. ） Sw. were analyzed by flame atomic absorption spectrometry. Methods The samples were pretreated with HNO3 - HC104 and measured quantitatively through calibration curve method. Results It was shown that the samples has rich in human essential metal elements. The recoveries are between 98.68% and 104.4% , and the relative standard deviation is less than 5%. Conclusion The result measured by this method is considered to be accurate.

关 键 词：火焰原子吸收光谱法 海金沙 微量金属元素 

分 类 号：O657.31[理学—分析化学]