火焰原子吸收光谱法测定口蘑中的微量元素

Determination of Trace Elements of Mushrooms from Zhangjiakou Areas by Flame AAS

目的:测定口蘑中Fe、Zn、Cu、Mn的含量.方法:采用湿法消解处理样品、用原子吸收法测定口蘑中所含的微量元素.结果:口蘑中含有Zn,Cu,Fe,Mn四种微量元素,加样回收率分别为Fe:103.05%,Zn:96.85%,Cu:96.67%,Mn:104.03%.RSD:Fe:0.74%,Zn:2.18%,Cu:3.56%,Mn:2.17%.结论:口蘑中含有丰富的Fe、Zn、Cu、Mn元素,而且该方法快速、可行、精密度较好.

Objective： To measure the contents of four kinds of trace elements which include Fe, Zn, Cu and Mn. Method： Samples were delt with with the method of wet digestion. To measure the contents of trace elements in Mushrooms from Zhangjiakou areas, flame AAS was used. Results： The trace elements of Zn, Cu, Fe and Mn are found in the mushrooms. The average recovery of standard addition is： Fe： 103. 05%, Zn. 96.85%, Cu. 96.67%, Mn： 104.03%. RSD. Fe： 0.74%, Zn： 2.18%, Cu. 3. 56%, Mn： 2. 17%. Conclusion： A lot of trace elements are contained in the mushrooms. The method used is quick, simple and convenent, and the results are satisfactory.