不同产地苦木药材中微量元素的测定

Determination of Five Elements in Picrasma quassioides from Different Producting Areas by FAAS

目的测定不同产地苦木药材中微量元素的含量。方法用硝酸、高氯酸消化处理后,用火焰原子吸收法测定不同产地苦木中5种微量元素的含量。结果广东产苦木药材中Fe、Mg、Ca、Zn、Cu的质量分数(单位为mg·kg-1)分别为750.6、250.3、5 900.8、100.1、35.7;广西产苦木药材中的质量分数分别为689.2、300.5、6 803.4、290.0、25.6;江西产苦木药材的质量分数分别为58.3、178.4、3 790.1、78.9、67.8。结论不同产地苦木药材微量元素质量分数差别很大。

Objective To determine the content of trace elements in Picrasma quassioides from different producting areas. Method The samples were digested by nitrate and perchlofic acid, then Use flame atomic absorption spectrometry to measure five elements （Fe, Mg, Ca, Zn, Cu ） of Picrasma quassioides from different producting areas. Result The content of Fe, Mg, Ca, Zn, Cu in Picrasma quassioides （mg. kg-l）： inguangdongprovice, Fe750.6, Mg250.3, Ca5 900. 8, Zn 100.1, Cu 35.7; in guang xi provice, Fe 689. 2, Mg 300. 5, Ca 6 803.4, Zn 290.0, Cu 25.6; in jiang xi provice, Fe 58.3, Mg 178.4, Ca 3 790. 1, Zn 78.9, Cu 67.8. Conclusion There were large different in the contents of five trace elements among Picrasma quassioides with different habitats.