微波消解ICP-AES测定黑花生和红花生中的微量元素含量  

Analysis of Trace Elements in Black Peanut and Red Peanut by ICP-AES with Microwave Digestion

作　　者：辛士刚[1] 王莹[2] 张轲[2] 赵丹[2] 吴英[2] 于力[2] 郑治国[3] 

机构地区：[1]沈阳师范大学实验中心 [2]沈阳师范大学化学与生命科学学院,沈阳市110034 [3]沈阳师范大学教务处,沈阳市110034

出　　处：《光谱实验室》2009年第6期1527-1530,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：国家自然科学基金(50771068)

摘　　要：样品加浓硝酸,在微机控温加热板上加热赶酸,再加H2O2后。采用微波消解处理样品,以电感耦合等离子体-原子发射光谱法(ICP-AES)测定了黑花生与红花生中K,Mg,Cu,Mn,Fe,Ca,Zn,Se等8种微量元素的含量。方法的回收率在89.2%—110.1%之间,相对标准偏差小于3.25%。实验证明,黑花生与红花生中均含有K,Mg,Cu,Mn,Fe,Ca,Zn,Se等多种微量元素,尤其黑花生是营养价值极高,深受人们喜爱的健康食品。The samples were treated with concentrated nitric acid, heated to remove the acid on computer controlling heating plate, added H2O3 into the sample mixture, and digested with microwave. The contents of K, Ca, Cu, Mg, Mn, Fe, Zn, Se in black peanut and red peanut were determined by ICP-AES. The recovery is in the range of 89.2%-110. 1%;and the relative standard deviation is less than 3.25%. The experiment result proves that there are many kinds of trace elements such as K,Ca, Cu, Mg, Mn, Fe, Zn, Se in both black peanut and red peanut, and the black peanut is of high nutritional value as the very popular healthy food.

关 键 词：微波消解 电感耦合等离子体-原子发射光谱法 黑花生 红花生 微量元素 

分 类 号：O657.31[理学—分析化学]