几种药食两用野菜中16种元素的含量测评  

Determination of 16 elements in Three Medical and Edible Plant Samples by Microwave Digestion and ICP- AES

作　　者：李玉华[1,2] 唐沙沙[1,2] 刘红[1,2] 

机构地区：[1]贵州毕节学院化学化工实验教学中心 [2]贵州省应用化学特色重点实验室,贵州毕节551700

出　　处：《微量元素与健康研究》2014年第4期40-42,共3页Studies of Trace Elements and Health

基　　金：贵州省科技厅联合基金(黔科合J字LKB[2013]05号);毕节学院教学改革项目(No.JG2013009)

摘　　要：采用微波消解法处理马齿苋、苋莱和苦莱样品，电感耦合等离子体发射光谱（ICP—AES）测定其中K、Na、Ca、Mg、P、Sr、Fe、Mn、Zn、Cu、Co、Cr、Al、Ba、Ni和Cd16种常量和微量元素的含量。16种元素的检出限为0．00003-0．00917μg／ml，回收率90．00％～107．85％，相对标准偏差（RSD）均小于5．0％。结果显示，马齿苋、苋莱和苦莱中除含有人体必需的常量元素K、Na、Mg、Ca外，还含有Fe、Zn、Mn、Cr、Co等必需的微量元素和其它元素P、Ni、Ba、Al、Sr、Cd、Ba等。The contents of 16 dements of K, Na, Ca, Mg, P, Sr, Fe, Mn, Zn, Cu, Co, Cr, Al, Ba, Ni, and Cd in three medical and Edible plant（Portulaca oleracca L. , Souehus brachyotus DC. , Amarantus mangestnus L. ）） were determined by ICP- AES, and the samples were pretreated by microwave digestion method. The detection limits were 0.00003 - 0.00917μg/ml, and the recovery rates were 90.00% -- 107.85%, the precisions were less than 5. 0%. Four macroelements, K, Na, Mg and Ca, five essential microelements, Fe, Zn, M n, Cr and Co, and seven other elements, P, Ni, Ba, Al, Sr, Cd and Ba were detected in three medical and Edible plant.

关 键 词：ICP—AES 马齿苋 苋菜 苦菜 微波消解 

分 类 号：TS201[轻工技术与工程—食品科学]