近红外光谱法同时测定卷烟配方中膨胀烟梗颗粒和再造烟叶的研究

摘要

[Objective] The study aimed to investigate the feasibility of expanded tobacco stem granules and reconstituted tobacco in cigarette formula by Near-Infrared Spectroscopy. [ Method ] Chemical conventional constituent content, material surface morphological differences and Near-Infrared Spectroscopy differences of conventional cigarette formula,expanded tobacco stem granules and reconstituted tobacco were analyzed,with 60 cigarette samples containing different quantity expanded tobacco stem granules and reconstituted tobacco as modeling samples, established near-infrared quantitative correction model of expanded tobacco stem granules and reconstituted tobacco using least square method. [ Result] The correlation coefficients(r) of actual value and predicted value of expanded tobacco stem granules and reconstituted tobacco reached 0. 996 1, 0.994 9,respectively,moreover,root man square of rectification error (RMSEC)reached 0.477 and 0.668,respectively. [Conclusion] Near-Infrared Spectroscopy can simultaneously determine the contents of expanded tobacco stem granules and reconstituted tobacco in cigarette formula rapidly and accurately.%[目的]考察近红外光谱法同时测定卷烟配方中膨胀烟梗颗粒和再造烟叶的可行性.[方法]对常规卷烟配方物质、卷烟膨胀烟梗颗粒和再造烟叶的化学常规成分含量、物质表面形态差异及近红外光谱差异进行分析.以60个含有不同量膨胀烟梗颗粒和再造烟叶的卷烟样品为建模样品集,用最小二乘法建立卷烟配方中膨胀烟梗颗粒和再造烟叶的近红外定量校正模型.[结果]样品中膨胀烟梗颗粒和再造烟叶的实际值和预测值的相关系数(r)分别达到0.9961、0.994 9,校正误差均方根(RMSEC)分别为0.477和0.668.[结论]用近红外光谱可以同时快速准确地测定卷烟配方中膨胀烟梗颗粒和再造烟叶的含量.