几种天津野生中药材中无机元素含量的测定

Determination of the Mineral Elements Content in Several Wild Traditional Chinese Medicines in Tianjin

[目的]分析天津野生猪毛菜、萹蓄、艾草中9种无机元素的含量,为进一步研究其药效提供科学依据。[方法]采用湿法处理猪毛菜、萹蓄、艾草,用火焰原子吸收分光光度计测定其Ca、Mg、Fe、Cu、Zn、K、Pb、Na和Mn的含量。[结果]3种野生中药材中Ca的含量为6 440.49~9 364.01μg/g;Cu的含量为13.19~31.14μg/g;Mg的含量为5 156.66~10 423.99μg/g;Mn的含量为63.71~108.03μg/g;K的含量为18 262.22~24 836.81μg/g;Na的含量为109.92~6 329.75μg/g;Zn的含量为67.07~90.94μg/g;Fe的含量为969.32~2 147.52μg/g;3种野生中药材中均检出含有一定量的Pb。3种中药材中,萹蓄中各种无机元素含量均较低,艾草中无机元素含量较高。[结论]该方法准确、稳定、操作简便、快捷。

[Objective]To analyze the contents of nine mineral elements in wild Salsola collina Pall.,Polygonum aviculare L.,and Artemisia argyi in Tianjin,so as to provide scientific basis for studying their efficacy.[Method]The wet drying method was adopted to process Salsola collina Pall.,Polygonum aviculare L.,and Artemisia argyi,in which the contents of Ca,Mg,Fe,Cu,Zn,K,Pb,Na and Mn were determined by FAAS.[Result] In those three herbal medicines,Ca content ranged from 6 440.49 to 9 364.01 μg/g;Cu from 13.19 to 31.14 μg/g;Mg from 5 156.66 to 10 423.99μg/g;Mn from 63.71 to 108.03 μg/g;K from 18 262.22 to 24 836.81 μg/g;Na from 109.92 to 6 329.75 μg/g;Zn from 67.07 to 90.94 μg/g;Fe from 969.32 to 2 147.52 μg/g;certain amount of Pb was detected in all the three medicines,of which Polygonum aviculare L.had relative low contents of mineral elements while Artemisia argyi had the highest.[Conclusion]The method was accurate,stable,easy and rapid.