微波辅助消解ICP-AES法测定地笋中18种元素  

Determination of 18 elements in Lycopus lucidus Turcz by microwave digestion and ICP-AES

作　　者：刘红[1,2] 陈燕芹[1,2] 张宇[1,2] 夏至[1,2] 姚文超[1,2] 

机构地区：[1]毕节学院化学与化学工程学院,毕节551700 [2]贵州省应用化学特色重点实验室,毕节551700

出　　处：《食品科技》2014年第2期270-273,共4页Food Science and Technology

基　　金：贵州省科技厅联合基金项目(黔科合J字LKB[2013]05号)

摘　　要：采用微波消解法处理地笋样品,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、As、Pb和Cd 18种常量和微量元素的含量。18种元素的检出限为0.00003～0.00990μg/mL,回收率89.20%～110.00%,相对标准偏差(RSD)均小4.8%。结果显示,地笋样品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他元素P、Ni、Ba、Al、Sr、Pb、Cd、Ba等。The contents of 18 elements of K, Na, Ca, Mg, P, Sr, Fe, Mn, Zn, Cu, Co, Cr, Al, Ba, Ni, As, Pb and Cd in Lycopus lucidus Turcz were determined by ICP-AES, and the samples were pretreated by microwave digestion method. The detection limits were 0.00003～0.00990 μg/mL, and the recovery rates were 89.20%～110.00%, the precisions were less than 4.8%. Four macroelements, K, Na, Mg and Ca, five essential microelements, Fe, Zn, Mn, Cr and Co, and eight other elements, P, Ni, Ba, Al, Sr, Pb, Cd and Ba were detected in Lycopus lucidus Turcz.

关 键 词：ICP-AES 地笋 微量元素 微波消解 

分 类 号：TS207.3[轻工技术与工程—食品科学]