微波消解电感耦合等离子体发射光谱法测定扶芳藤中的无机元素

Determination of Inorganic Elements in Euonymus fortunei by Microwave Digestion ICP——AES

目的建立一种用电感耦合等离子体发射光谱法测定扶芳藤中无机元素及含量的方法。方法用硝酸进行消解，电感耦合等离子体发射光谱法（ICP-AES）同时测定扶芳藤样品中Ba，Cu，Sr，Ti，Zn，Mn，P，Cr，K，Li，Na，Ni，Mg，Al，Fe等多种无机元素。结果其相对标准偏差为0.78%-3.27%，回收率（n=5）为99.94%-118.3%。研究表明扶芳藤中含有丰富的对人体有益的微量元素，微量元素在植物药中可能起到一定的药理作用。结论ICP-AES法能够快速、准确、简便地测量扶芳藤中无机元素的含量。

Objective To develop a method for determination of the inorganic elements in Euonymus fortunei. Methods A method for determination of Ba, Cu, St, Ti, Zn, Mn, P, Cr, K, Li, Na, Ni, Mg, Al, Fe in Euonymus fortunei was developed by using ICP - AES together with HNO3 digestion. Results The average recovery was 99.94% - 118.3% and the RSD（ n = 5） of 0.78% 3.27%. The results show that the samples contains large amount trace elements , and is particularly rich in human - body - needed trace elements. The trace elements play important medical roles in plant medicine. Conclusion ICP - AES is rapid, accurate and simple to determine the inorganic elements in Euonymus fortunei.