用火焰原子吸收光谱法测定了芦荟中铁、锌两种微量元素含量。结果表明,芦荟中铁和锌千含量分别为638、244μg/g。火焰原子吸收光谱法测定样品中铁含量和锌含量的相对标准偏差分别为7.06%,3.63%,加标回收率在95%~102.5%范围内,检测限分别为0.011μg,/mL和0.002μg/mL。
The content of two trace elements in Aloe analysed by air - acetylene fire atomic absorption spectrometry(FAAS). The results show that the content of Fe is 638 μg/g, Zn is 244 μg/g, the recoveries of elements are within 95% to 102.5% and RSD of 7.06% to 3.63%. The detection limits were Fe 0. 011 p.g/mL, Zn 0. 002 μg/mL respectively.