Analysis of speciation of trace elements in Rhodiola saccharinensis borisova

To investigate the speciation of 8elements such as,Mg,Fe,Mn,Cr,Cu,Zn,Ni,and Co in Rhodiola saccharinensis,these elements were extracted using artificial gastric acid and aqueous solution,respectively.Free ions and non-free ions forms,the stable and non-stable forms of the eight trace elements were obtained.The distribution of protein and polysaccharide binding forms of trace elements was analytical.The trace elements content were determined.The results showed that the extract of dissolution rate of eight trace elements in artificial gastric acid was higher than the aqueous solution.The proportion of polysaccharide binding forms of all eight elements was lower than the aqueous solution.The proportion of free forms of seven elements was higher than the aqueous solution.The proportion of unstable states of six elements was higher than the aqueous solution.The proportion of protein binding forms of four elements was higher than the aqueous solution.