原子吸收光谱法测定莲子和莲子心中7种金属元素含量  

Determination of Seven Metal Elements in Lotus Seed and Plumula Nelambinis by Atomic Absorption Spectrometry

作　　者：吴梅青[1] 陈丹[1] 李君[1] 李俊雅[1] 

机构地区：[1]湘潭职业技术学院,湖南湘潭411102

出　　处：《分析测试技术与仪器》2013年第3期138-142,共5页Analysis and Testing Technology and Instruments

基　　金：湖南省卫生厅厅基金研究项目(No.B2012-143)

摘　　要：利用火焰原子吸收光谱法测定6种不同产地的湘莲莲子和莲子心中7种金属元素含量．莲子和莲子心样品经粉碎干燥后，用硝酸-高氯酸混合液进行消解处理，采用火焰原子吸收光谱法测定样品中Cr、cu、zn、Fe、Mn、Pb、cd的含量．莲子和莲子心中富含微量元素Fe、Mn、Zn、Cu、Cr，有害金属元素Pb和cd未检出．各元素的加标回收率为98．58％～101．53％，RSD在0．78％～1．89％之间．方法快速、简便、灵敏，结果准确可靠，为莲子和莲子心中金属元素含量测定提供了一种可靠的方法．The content of seven metal elements in Lotus seed and Plumula Nelambinis from 6 different growing areas were determined by Flame Atomic Absorption Spectrometry（FASS）. Lotus seed and Plumula Nelambinis were ground and dried, and then were digested by mixtures of HNO3 and HC104 by wet digestion. The contents of Fe ,Mn ,Zn ,Cu ,Cr,Pb and Cd were determined by FAAS. Lotus seed and Plumula Nelambinis contained a lot of trace elements such as Fe,Mn,Zn,Cu and Cr, whereas harmful elements Pb and Cd were not detected. The recovery and relative standard deviation of these metal elements were 98.58% - 101.53% and 0.78% - 1.89% respectively. The established method is simple,rapid and accurate. It is a reliable method for the determination of metal elements in Lotus seed and Plumula Nelambinis.

关 键 词：莲子 莲子心 原子吸收光谱 金属元素 

分 类 号：O657.31[理学—分析化学]