Journal
ANALYTICAL SCIENCES
Volume 35, Issue 8, Pages 849-854Publisher
JAPAN SOC ANALYTICAL CHEMISTRY
DOI: 10.2116/analsci.19P063
Keywords
Gas chromatography-mass spectrometry; nicotine; tobacco alkaloids
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One method based on QuEChERS sample preparation is presented in this study, which leads to simultaneously detect nine alkaloids in tobacco and tobacco products. Nicotine, nornicotine, myosmine, N-methyl anabasine, beta-nicotyrine, anabasine, anatabine, isonicotenine and cotinine can all be found in fresh tobacco leaves, cigars, Virginia-type and blended-type cigarettes. The samples were purified via a certain proportion of adsorbents consisting of anhydrous magnesium sulfate, PSA and carbon after extracting, then centrifuged and filtered before analyzing by GC-MS. The matrix effects were all among 88 - 105%. The limit of detection of all were within the range of 0.0065 - 0.1509 mu g/g and limit of quantification were among 0.0217 - 0.5031 mu g/g. The recovery rates were higher than 89%. This is the first time that the QuEChERS sample preparation method has been applied for tobacco alkaloids, where more varieties of alkaloids could be quantified regarding sensitivity and reproducibility.
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