烟草科技2025，Vol.58Issue(7)：10-19,10.DOI:10.16135/j.issn1002-0861.2025.0041
以烟草和高聚物为标样的烟草近红外光谱定量模型传递效果评价
Evaluation of transfer effects of near-infrared spectral quantitative models for tobacco using tobacco and polymer as standard samples
摘要
Abstract
To evaluate the transfer effects of near-infrared(NIR)spectral quantitative models for the main conventional chemical indexes of tobacco using polymers as standard samples,and to promote the application of NIR spectroscopy in the tobacco industry,spectral transfer models were established for the same brand and different brands of NIR spectrometers from slave to the same host instruments using piecewise direct standardization(PDS)and spectral space transformation(SST),with tobacco and 17 polymers as the standard materials.Principal component analysis and Mahalanobis distances between the transferred and original spectra from the host instrument were used to optimize the PDS and SST parameters.The effectiveness of the transfer models was evaluated using the root mean square error of prediction(RMSEP)between the predicted values based on the transferred spectra from the slave instrument and the determined values obtained using reference methods.The results showed that:1)The optimal PDS parameters were a segment wavelength window width of 6 cm-1 and six PLS principal factors.2)The optimal SST parameter was six PLS principal factors.3)The RMSEP values for total nitrogen,nicotine,and total sugar in the 90 external test samples across the same brand and different brand NIR spectrometer model transfers indicated that the calibration performance of the spectral transfer models was as follows,ranked from best to worst:tobacco standard sample+SST,tobacco standard sample+PDS,polymer standard sample+PDS,and polymer standard sample+SST.Tobacco performed better than the polymers as standard samples for transferring NIR models of total nitrogen,nicotine,and total sugar in flue-cured tobacco leaves.These findings provide a foundation for the wider application of NIR spectroscopy in the tobacco industry.关键词
烟草/近红外光谱/模型传递/标样/高聚物/常规化学指标Key words
Tobacco/Near-infrared spectroscopy/Model transfer/Standard sample/Polymer/Conventional chemical index分类
轻工纺织引用本文复制引用
王萝萍,马翔,陆俊平,韩莹,刘欣,祁飞燕,马洪锋,杨舒涵,郑博文..以烟草和高聚物为标样的烟草近红外光谱定量模型传递效果评价[J].烟草科技,2025,58(7):10-19,10.基金项目
云南中烟工业有限责任公司重点项目"云南中烟烟叶近红外模型统一构建与应用研究"(2023YL05). （2023YL05）
