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Determination of heavy metals in mainstream smoke by ORS-ICP-MS  

Cho, Sung-Eel (KT&G Central Research Institute)
Ji, Sang-Un (KT&G Central Research Institute)
Hwang, Keon-Joong (KT&G Central Research Institute)
Publication Information
Journal of the Korean Society of Tobacco Science / v.30, no.1, 2008 , pp. 25-32 More about this Journal
Abstract
In this study, we compared three different pretreatment methods, such as block digestion, microwave digestion and solvent injection, coupled with Octopole Reaction System(ORS)-ICP-MS was used for the quantification of heavy metals in mainstream smoke of 2R4F reference cigarette, and then evaluated those efficiencies in the recovery, repeatability and reproducibility. In all methods, volatile heavy metals, As, showed the highest CV value, and Cd showed the lowest one. However, the solvent injection method showed the most stable recovery rate and CV value of 2.36 %. This method showed also advantages in time-consuming and compatibility with ICP-MS system. This results demonstrate that solvent injection method can be recommended as a superior pretreatment procedure to be able to reduce contaminants and spectral interference as well as loss of the elements interested.
Keywords
pretreatment method; Octopole Reaction System(ORS)-ICP-MS;
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