火焰原子吸收光谱法间接测定烟草中的烟碱含量  

Indirect Determination of Nicotine in Tobacco by Flame AAS

作　　者：焦传英[1] 王光明[1] 孙震宇 

机构地区：[1]华东冶金学院化学分析中心

出　　处：《光谱实验室》1998年第2期58-61,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：基于盐酸介质中雷氏氨盐在室温下与烟碱定量形成难溶配合物的性质，采用火焰原子吸收光谱法测定反应体系中变化的铬量，根据反应计算出样品中烟碱的含量。方法用于测定烟草中的烟碱含量，回收率９１．６％－１０５．５％，相对标准偏差１．４％－５．２％，结果满意。An indirect method for the determination of nicotine in tobacco of cigarette by flame atomic absorption spectrometry has been developed. In HCl acidic medium, nicotine reacts with ammonium reineckate to give a precipitate at room temperature, then measures the chromium in the aqueous solution by AAS. The percent content of nicotine in samples is indirectly calculated . The recovery is from 91.6% to 105.5% and the RSD is 1.4% to 5.2%.The method has been used for the determination of nicotine in cigarette with satisfactory results.

关 键 词：间接测定 雷氏盐 烟碱 分析 烟草 火焰原子吸收光谱法 

分 类 号：TS411[农业科学—烟草工业]