微波消解-ICP-OES法测定刺梨和无籽刺梨果实中微量元素  

Quantitative determination of multiple elements in Rosa roxburghii and Rosa sterilis fruits using ICP-OES with microwave digestion

作　　者：张源和[1] 马娜[2] 何敬愉[2] 管艳艳[3] 黄玉[1] 袁慧杰[1] 李松[3] 赖志辉[1,3] 

机构地区：[1]中山大学生命科学学院,广东广州510275 [2]广州中国科学院先进技术研究所,广东广州511458 [3]中山大学测试中心,广东广州510275

出　　处：《中山大学学报（自然科学版）》2016年第3期106-110,共5页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(51072236)

摘　　要：建立了刺梨Rosa roxburghii和无籽刺梨Rosa sterilis中微量元素的分析方法。采用微波消解-电感耦合等离子体发射光谱法（ICP-OES）测定了Al、B、Ba、Ca、Cu、Fe、K、Mg、Mn、Na、Ni、P、S、Sr、Zn共15种元素。结果显示各元素在质量浓度范围0~10 mg/L内线性良好,相关系数R≥0.999 1,仪器的检出限为0.000 1~0.006 1mg/L,精密度实验相对标准偏差为0.3%~2.7%,加标回收率为93.3%~107.7%。利用该方法分析了国家标准物质黄芪（GBW10028）,结果与证书值相符。该方法可快速、准确地测定刺梨和无籽刺梨中微量元素。We have established a method for determination of the trace elements within Rosa roxburghii and Rosa sterilis Fruits in this study. The contents of 15 elements（ Al,B,Ba,Ca,Cu,Fe,K,Mg,Mn,Na,Ni,P,S,Sr,Zn） were determined by ICP-OES with microwave digestion. The linear ranges of the elements were ranged from 0 ~ 10 mg / L with a correlation coefficient more than 0. 999 1. The detective limits of the instrument were ranged from 0. 000 1 ~ 0. 006 1 mg / L,precision experiments showed RSD ranged from 0. 3% ~ 2. 7% and the recoveries of the elements were in the range of 93. 3% ~107. 7%. Such method was used to test the national standard substance Astragalus membranaceus（ GBW10028）,and the result was consistent with the certificate value. Therefore,this method can be used for quickly and accurately measuring trace elements within Rosa roxburghii and Rosa sterilis Fruits.

关 键 词：电感耦合等离子体发射光谱法(ICP-OES) 刺梨 无籽刺梨 微量元素 

分 类 号：O657.31[理学—分析化学]