山西野生连翘及其土壤中微量元素及重金属的含量测定

Determination of the trace elements and heavy metal elements in Shanxi wild forsythia and soil

目的:测定山西14个县野生连翘及其土壤中微量元素与重金属的含量并对其安全性进行评价,为综合开发利用连翘资源提供实验依据。方法:采用原子吸收光谱法、原子荧光光谱法、电感耦合等离子发射光谱法及电感耦合等离子体质光谱法测定连翘及其土壤中微量元素与重金属元素Hg、As、Pb、Cd、Cr、Cu、Zn、Ni、Mg、Fe、Mn、Se、Ge的含量。结果:山西野生连翘是安全的,含有多种对人体有益和必需的微量元素,其中铁含量较高;连翘生长的土壤环境状况良好,连翘果实重金属含量均低于药用植物及制剂进出口绿色行业标准。结论:连翘土壤和果实之间重金属和微量元素的相关性不明显,有待加大采样量继续深入研究。

Objective：To detect the contents of trace elements and heavy metal elements in forsythia fruit and forsythia soil and to supply experimental data for the comprehensive development and utilization of forsythia. Method：The contents of trace elements and heavy metal elements in forsythia fruit and forsythia soil were detected by atomic fluorescence spectrophotometry,atomic absorption spectrophotometry,inductive coupling plasma radiation spectrophotometry and inductively coupled plasma mass spectrometry respectively. Result：Shanxi wild forsythia in different regions are safe. They contain a variety of beneficial and essential trace elements for human body, in which iron content is relatively higher. The contents of heavy metal elements in wild forsythia fruit are lower than those in standards of import and export of green industry of medicinal plants and preparations. Conclusion ：The correlation between contents of heavy metal elements and trace elements in forsythia soil and those in forsythia fruit aren＇t obvious.Further study should be conducted, such as increasing the number of samples.