ICAP法测定海红果中微量元素的可行性研究

Study feasibility on determination of mnltiply trace elements in haihong fruit by ICAP

应用ICAP-900等离子发射光谱法(简称ICAP法)测定海红果中Fe、Cu、Mn、Mg、Zn元素的含量,检测结果回收率为Fe110.2%、Cu92.5%、Mn91.8%、Mg93%、Zn92.5%;检出限为Fe0.0934mg/kg、Cu0.0025mg/kg、Mn0.0006mg/kg、Mg0.0020mg/kg、Zn0.0063mg/kg。该方法的精密度(RSD)(n=10)为0.4%￣2.1%,样品的精密度(RSD)(n=5)为1.6%￣15.1%,结果令人满意。用ICAP法测定海红果中微量元素对该法的应用推广具有重要的意义。

The thesis mainly Fe, Cu, Mn, Mg, Zn in the haiHong fruit were found to be Fe 110,2%, Cu 92.5% Mn 91.8%, Mg 93%, Zn 92.5%, detection bound is Fe 0.0934,Cu 0.0025, Mn 0,0006, Mg 0.0020, Zn 0.0063 The method RSD（n=10） is 0.4%-2.1%.The sample RSD（n=5） is 1,6%-15.1%. The results obtained satisfactory It is of important significance to assess the value of multiply trace elements in haihong fruit with ICAP.