Abstract: The method for the determination of copper, zinc, manganese, iron, magnesium, calcium in wild pine tea by microwave plasma torch-atomic emission spectrometry (MPT-AES) was developed. The effect of nitric acid concentration in the sample solution and co-ionized elements on the emission intensity of copper, zinc, manganese, iron, magnesium and calcium was investigated in detail. The experimental conditions were optimized and showed that the detection limits of metal Cu, Zn, Mn, Fe, Mg and Ca are 3.6, 7.7, 6.1, 14.1, 0.5 and 0.9 ng/mL, respectively, and the RSD of the method is between 1.05%～6.46%, the recoveries are 97.25%～103.37%. This demonstrated that the proposed method is simple, accuracy and efficient, providing a well-established analytical method．

Key words: Microwave plasma torch-atomic emission spectrometry(MPT-AES) , Wild pine tea , Trace element

摘要： 采用微波等离子体炬原子发射光谱法（ＭＰＴ－ＡＥＳ）测定野松茶中的Ｃｕ、Ｚｎ、Ｍｎ、Ｆｅ、Ｍｇ、Ｃａ６种微量元素，在优化各项实验参数基础上，考察了酸干扰和共存离子的干扰。该方法下Ｃｕ、Ｚｎ、Ｍｎ、Ｆｅ、Ｍｇ、Ｃａ的检出限分别为３．６、７．７、６．１、１４．１、４．７、５．６ｎｇ／ｍＬ，方法精密度（ＲＳＤ）为１．０５％～６．４６％，回收率为９７．２５％～１０３．３７％。结果表明此方法简便、准确、分析速度快，是一种切实可行的分析方法。

关键词: 微波等离子体炬原子发射光谱法 , 　野松茶 , 　微量元素