烟草科技2017，Vol.50Issue(4)：51-57,7.DOI:10.16135/j.issn1002-0861.2016.0384
非线性化学特征图谱技术在烟叶类型鉴别上的应用
Application of nonlinear chemical characteristic spectrum technique in tobacco type identification
摘要
Abstract
To establish an objective and accurate method for discriminating tobacco types (including tobacco leaf,cut tobacco,tobacco dust,etc),nonlinear chemical characteristic spectrum technique was used to obtain the corresponding electric potential-time(E-t) function curves from tobacco samples. The key factors affecting chemical oscillation system were optimized,and the repeatability of the method was investigated. The nonlinear chemical characteristic spectra of tobacco leaves of five types (flue-cured tobacco,red sun-cured tobacco, yellow sun-cured tobacco, oriental tobacco and burley tobacco) were characterized under the optimized conditions,and the types of six confiscated tobacco samples were analyzed to validate the established method. The results showed that: 1) The optimized conditions were bath temperature 45 ℃,stirring speed 800 r/min, sample weight 0.50 g, and volume of 0.8 mol/L NaBrO3 solution 3 mL. 2) The method achieved a high consistency with an average similarity of 0.9822 for the five spectra obtained from the same sample. 3) The tobacco samples of five types displayed unique spectra with total similarities ranged from 0.7493 to 0.8839. 4) The types of six confiscated tobacco samples discriminated by the established method agreed with those determined by a traditional panel test. This novel method is intuitive,accurate,with good repeatability,and suitable for identifying and discriminating confiscated or counterfeit tobacco.关键词
非线性化学/特征图谱/烟叶类型/鉴别Key words
Nonlinear chemistry/Characteristic spectrum/Tobacco type/Identification分类
化学化工引用本文复制引用
陈玉松,侯宏卫,陆伟,庞永强,罗旭,刘敏,别振英,纪立顺..非线性化学特征图谱技术在烟叶类型鉴别上的应用[J].烟草科技,2017,50(4):51-57,7.基金项目
中国烟草总公司山东省公司科技项目"应用电化学指纹图谱技术鉴别罚没烟叶类型"(KR235). （KR235）
