AOTF-NIR快速检测再造烟叶涂布液主要化学指标  

Fast Testing of Main Chemical Components in Coating for Reconstituted Tobacco by AOTF-NIR

作　　者：王保兴 李晓亚 刘维涓 邹振民[2] 侯英 董海平[2] 卫青 

机构地区：[1]云南瑞升烟草技术(集团)有限公司,昆明市高新区科医路41号650106 [2]济南金宏利实业有限公司,济南市洪楼西路39号250100

出　　处：《烟草科技》2011年第6期56-59,共4页Tobacco Science & Technology

摘　　要：为了快速检测造纸法再造烟叶涂布液的化学品质,采用声光可调近红外光谱(AOTF-NIR)技术在模拟生产温度(70℃)下采集了89个再造烟叶涂布液样品的漫透射光谱,连续流动分析法测定了这些样品的烟碱、总糖、还原糖、氯离子及钾离子含量,采用偏最小二乘法(PLS)将样品的光谱数据与其烟碱、总糖、还原糖、氯离子及钾离子含量测定值拟合,建立了预测再造烟叶涂布液烟碱、总糖、还原糖、氯离子及钾离子含量的NIR模型,并用随机挑选的16个样品验证了这些模型的预测能力。结果表明,烟碱、总糖、还原糖、钾离子和氯离子模型预测的平均相对偏差分别为2.01%,1.71%,1.75%,1.83%和1.68%,RSD各为1.44%,0.95%,1.12%,0.91%,0.51%。结论,AOTF-NIR法可用于再造烟叶涂布液烟碱、总糖、还原糖、钾离子和氯离子含量的快速检测。In order to rapidly analyze the chemical components in coating for reconstituted tobacco, the diffuse transmission spectrum of 89 coating samples were collected at temperature of 70 ℃ by an AOTF-NIR, the contents of nicotine, total sugar, reducing sugar, chlorine ion and potassium ion in the samples were determined by a continuous flow analyzer. The models for predicting the contents of these chemical components in the coating qersus their spectra data were established with partial least square method. The prediction models were validated with 16 random unknown samples. The results showed that the average relative predicting deviations of nicotine, total sugar, reducing sugar, chlorine ion and potassium ion were 2.01%, 1.71%,1. 75%, 1. 83%, 1. 68%, with RSDs of 1. 44%, 0. 95%, 1. 12%, 0. 91%, 0. 51%, respectively. It was concluded that AOTF-NIR could be used in the fast determination of mentioned analytes in coating for reconstituted tobacco.

关 键 词：再造烟叶 涂布液 声光可调近红外光谱技术 漫透射 化学指标 

分 类 号：TS411.1[农业科学—烟草工业]