摘要
采用V(HNO_3):V(HClO_4):V(H_2O_2)=2:1:1的改进混合酸体系对黄精样品作消解处理,利用火焰原子吸收分光光度法和石墨炉原子吸收法分别测定其中金属元素的含量.结果表明,黄精中含有较丰富的矿物元素,K,Na,Cu,Zn,Fe,Ca,Mg,Mn,Cr9种元素含量分别为0.396 28%,6.799×10^(-2)%,3.7×10^(-4)%,16.9×10^(-4)%,1.279×10^(-2)%,0.175 14%,5.480×10^(-2)%,21.3×10^(-4)%,0.5×10^(-4)%.
Digested by improved mixed acids V( HNO3 ) : V( HCIO4 ) : V ( H2 O2 ) = 2:1: 1, the mental elements in rhizome of polygonatum were determined by tiame and graphite furnace atomic absorption spectrometric method. The results showed that there were abundant metal elements contained in rhizome of polygonatum, the contents of K,Na,Cu ,Zn,Fe ,Ca,Mg,Mn ,and Cr were 0.396 28% ,6. 799 x 10 ^-2% ,3.7 x 10 ^-4%, 16.9 x 10^-4% ,1. 279 x 10^2z% ,0. 175 14% ,5.480 x 10^-2% ,21.3 x 10^-4% ,and 0.5 x 10^-4% respectively.
出处
《郑州轻工业学院学报(自然科学版)》
CAS
2009年第4期17-19,共3页
Journal of Zhengzhou University of Light Industry:Natural Science
基金
国家自然科学基金资助项目(20675073)
关键词
金属元素
原子吸收分光光度法
黄精
湿法消解
metal element
atomic absorption spectrometry
rhizome of polygonatum
digestion bywet method