Research progress in application,detection and limit requirements of nicotine salts in electronic cigarettes
In recent years,nicotine salt technology has been widely used in electronic cigarette,which has greatly promoted the development of electronic cigarette technology.In this paper,the main kinds and characteristics of nicotine salts used in electronic cigarettes are reviewed.The test methods of free nicotine and proton nicotine in nicotine salt used in electronic cigarette were summarized,and the advantages and disadvantages were analyzed.The requirements for nicotine limit in electronic cigarettes in major countries and regions in the world were compared.Finally,the trend of the type,detection analysis and limit requirements of nicotine salt is prospected,which provides reference for the application of electronic cigarette nicotine salt and the formulation of detection standards.
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