微波辅助消解-电感耦合等离子体原子发射光谱测定烟草中的重金属  

Determination of Heavy Metals in Tobaccos by Microwave-Assisted Digestion-Inductively Coupled Plasma-Optical Emission Spectrometry

作　　者：罗夏琳 胡玉斐[1] 李攻科[1] 

机构地区：[1]中山大学化学与化学工程学院,广东广州510275

出　　处：《分析科学学报》2016年第2期249-252,共4页Journal of Analytical Science

基　　金：国家自然科学基金(No.21475153;21107008)

摘　　要：本文以微波辅助消解为样品前处理方法,建立了电感耦合等离子体原子发射光谱法（ICP-OES）测定烟草中Cu、Zn、Cr、Cd、Pb、Mn、Fe 7种重金属含量的分析方法。结果表明：该方法 Pb的检出限为2.00μg/L,其他元素检出限均小于0.90μg/L,回收率在86.1%-116.4%之间,相对标准偏差（RSD）在1.1%-8.1%范围。方法已成功用于部分国内外烟草中的重金属含量检测。In this paper,an inductively coupled plasma-optical emission spectrometry（ICP-OES）method has been developed for the determination of seven heavy metals such as Cu,Zn,Cr,Cd,Pb,Mn and Fe in tobaccos.It was combined with microwave digestion as a sample pretreatment method.The detection limit（LODs）were below 0.90μg/L for target heavy metals except Pb of which the LOD was 2.00μg/L.The recoveries varied from 86.1%to 116.4%,and the relative standard deviations changed from 1.1%to 8.1%.This method was successfully applied to simultaneous determination of seven heavy metals in commercially available tobaccos samples.

关 键 词：电感耦合等离子体原子发射光谱法 微波消解 烟草 重金属 

分 类 号：O657.31[理学—分析化学]