タイトルまたは説明

             The tobacco flavor, which is a special smell diffusing from tobacco, forms the important aspect of the tobacco intrinsic quality. Nicotine is the major ingredient of *0 kinds of tobacco aromatic substances. More sensitive and effective methods are needed to analyze the tobacco aromatic substances. Nicotine is not only the main ingredient of the tobacco aromatic substance, but also the ingredient with the maximal content in the ***-plus volatile and semi-volatile chemical compositions in the cigarette smoke.
            Along with the market application of the high-purity nicotine （≥*9％）and its relevant products (such as those used in the industries of tobacco aromatic substances, electronic cigarette liquid, etc.) and its involvement with human health, we have analyzed the substances, like the nicotine in the smoke of the electronic cigarette liquid formed after thermal cracking, etc. and performed the measurements of nicotine and its metabolites in air, human urine, hair, blood and brain, and carried out in-depth study of its impacts on human health.