CHEN Wei-hua, HE Ai-min, YANG Yun-hong
(China Tobacco Hebei Industrial Corporation Technology Center, Hebei 050051, China)
Abstract: 3mL HNO3 and 2mL H2O2 were chosen for the sample digestion, 10 trace elements (Mn、Zn、Cu、Se、Ni、Co、Cr、As、Cd、Pb) in flue-cured tobacco samples were determined by ICP-MS with microwave digestion. All the detection limits of 10 elements were less than 0.02 μg/g and all the RSDs(n=5) of elements were less 3%.The recoveries of spiked samples were in the range of 97.35% and 101.30%. The results show that the method is simple, rapid and accurate, and can be applied to the analysis of trace elements in flue-cured tobacco.
Key words: ICP-MS; flue-cured tobacco; microwave digestion; trace elements
E-mail: cwhlzwd@163.com
Analysis and Testing Technology and Instruments, Vol. 17, No. 2, 2011, 114-117.
