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《Chemistry》 2006-07
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Determination of 17 Minor and Trace Elements in Tobacco by ICP-MS

Hu Qingyuan~ 1,3 , Li Li~2, Shi Jie~2, Chen Zaigen~1, Wang Fang~1( ~1China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001; ~2Department of Chemistry, Zhengzhou University, Zhangzhou 450052; ~3Anhui Institute of Optics and Mechanics, Chinese Academy of Sciences, Hefei 230031)  
A method for the determination of Be, Ti, V, Cr, Ni, Cu, As, Sr, Mo, Ag, Cd, Cs, Ba, Tl, Pb, Th and U in tobacco by ICP-MS with microwave digestion was studied. The precision of measurement ranges from 1.65% to 9.86% in terms of relative standard deviation. The recoveries of standard addition and limits of detection are in the range of 90.27%~110.4% and 0.3521~345.3ng/L, respectively. The results of experiments show that the method can meet the requirements of trace analysis. In this paper, samples of tobacco produced in 5 Tobacco zones were determined. The results indicate that the level of elemental content in tobacco varies according to region and stalk positions.
【CateGory Index】: TS47
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