FAAS法测定不同产地枸杞中的矿物元素

Determination of nine mineral elements in Lyciym barbarum L.from different areas by flame atomic absorption specteometry

湿法消解样品,用火焰原子吸收光谱法分别测定了5种不同产地枸杞中的Ca、Mg、Fe、Zn、Cu、Mn、Cr、Sr、Se等9种矿物元素的含量。各元素标准曲线的相关系数在0.9975~0.9999之间,加标回收率在95.82%~102.1%,相对标准偏差RSD在0.72%~3.65%之间。不同产地枸杞的矿质元素含量存在明显差异。

Abstract：The sample were treated by HNO3-HCIO4 system, and nine mineral elements of Ca, Mg, Fe,Zn ,Cu, Mn,Cr,Sr,and Se in five kinds of Lyciym barbarum from different areas were determined by flame atomic absorp- tion spectrometry. The standard relative curve coefficients of nine mineral elements range from 0.9975-0.9999. The recovery in the range of 95.82%-102.1%, the RSD between 0.72%-3.65%.