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流动注射电位法测定烟草和烟气中的尼古丁
引用本文:汪世龙,杨俊.流动注射电位法测定烟草和烟气中的尼古丁[J].同济大学学报(自然科学版),1999,27(4):503-506.
作者姓名:汪世龙  杨俊
作者单位:同济大学测试中心!上海,200092(汪世龙,倪亚明),合肥经济技术学院加工工艺系!合肥,230052(杨俊,邵国泉)
摘    要:通过研制一种石墨管状流通式尼古丁传感器,建立了流动注射电位法测定尼古丁的新方法.探讨了实验的最佳条件,用10-5mol·L-1的尼古丁溶液作载液,以NaH2PO4-Na2HPO4缓冲溶液控制酸度,进样体积300μL,对1.0×104-~1.0×10-4mol·L-1的尼古丁溶液有良好的线性响应,相关系数0.9987,进样频率80次·h-1.该方法简便、快速、选择性好,适用于大批量烟叶及卷烟烟气样品中尼古丁的分析测试.

关 键 词:流动注射分析  电位法  尼古丁  烟叶  烟气  烟草

Potentiomatric Determination of Nicotine and Cigarette Smoke by Flow Injecion Analysis
Wang Shilong ,Ni Yaming.Potentiomatric Determination of Nicotine and Cigarette Smoke by Flow Injecion Analysis[J].Journal of Tongji University(Natural Science),1999,27(4):503-506.
Authors:Wang Shilong  Ni Yaming
Abstract:The potentiometric detedriation of nicotine with a flow - thtough electrode by injechon ahalsis has been studied. The elecnd is mad up of Polyaniline modified, tubulargraphite electrode and polyvinyl chloride sensitively membrane with silicotungstic acid as the electroactive material. There is excellent liner response in the rang of 10-4 ~ 10- 1 mol. L-1 of nicotine and the Sample was added per an hour. The proposed method is rapid, simple, convenient and has been applied successfully to determinate nicotine in tobacco and smoke from different cigarettes.
Keywords:Flow injection analysis  Potentiometry  Flow-through electroed  Nicotine  Cigarette  Smoke
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