火焰原子吸收光谱法（FAAS）测定植物狭叶柴胡中六种金属元素

[Determination of six metal elements in plant Bupleurum scorzoneri folium Willd. by flame atomic absorption spectrophotometry (FAAS)].

作者信息

Xue Guo-qing, Liu Qing, Han Xiao-mei, Han Yu-qi, Wan Yin-sheng

机构信息

Department of Chemistry, Hexi University, Zhangye, China.

出版信息

Guang Pu Xue Yu Guang Pu Fen Xi. 2006 Jun;26(6):1173-5.

PMID:16961261

Abstract

The objective in this paper was to determine the amount of metal elements in the Plant Bupleurum scorzoneri folium Willd. by flame atomic absorption spectrophotometry (FAAS). FAAS method was established for the determination of Ca, Mg, Fe, Cu, Zn and Pb in the Plant Bupleurum scorzoneri folium Willd. after digestion with HNO3-HClO4 (V : V= 4 : 1) at 90-95 degrees C and at normal pressure. In the meantime, the optimum parameters of FAAS and the effects of solution medium on the results were studied. The analytical results of Ca, Mg, Fe, Cu and Zn were 5,588.9, 1,790.5, 869.3, 78.4, 44.3 microg x g(-1) respectively, and Pb was not checked out in the samples. The results showed that the recovery of standard addition was 99.57%-102.10%, the relative standard deviation (n= 9) was 0.18%-2.26%. The method is quick, simple and convenient, and the results are satisfactory.

摘要

本文的目的是通过火焰原子吸收光谱法（FAAS）测定狭叶柴胡中的金属元素含量。建立了硝酸 - 高氯酸（V : V = 4 : 1）在90 - 95℃常压下消解狭叶柴胡后，用火焰原子吸收光谱法测定其中钙、镁、铁、铜、锌和铅的方法。同时，研究了火焰原子吸收光谱法的最佳参数以及溶液介质对结果的影响。钙、镁、铁、铜和锌的分析结果分别为5588.9、1790.5、869.3、78.4、44.3 μg·g⁻¹，样品中未检出铅。结果表明，标准加入回收率为99.57% - 102.10%，相对标准偏差（n = 9）为0.18% - 2.26%。该方法快速、简便，结果令人满意。