Identification of cigarettes with different grades by using FTIR microspectroscopy

IF 4.3 2区化学 Q1 SPECTROSCOPY

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Pub Date : 2024-10-09 DOI:10.1016/j.saa.2024.125249

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Abstract

In this paper, FTIR microspectroscopy was used to identify the cigarettes of three different grades such as Jinwan cigarettes (J group), Yinxiangyipin cigarettes (Y group) and Hongsanhuan cigarettes (H group). IR spectra and peak-area ratios (A₂₉₂₃ /A₈₁₆, A₁₆₀₁ /A₂₉₂₃, A₁₆₀₁/A₉₂₀ and A₁₀₇₂/A₈₁₆) revealed significant differences among H, Y and J groups, reflecting the changes in chemical compositions with increased grade. Discriminant analysis was carried out on basis of the above peak-area ratios, achieving 100% accuracy for identification of H, Y and J groups. Principal component analysis (PCA) showed that carbohydrates and proteins were closely related to the quality of the cigarettes. In addition, curve fitting further confirmed that the structure of carbohydrates underwent changes due to the quality of the cigarettes. The above results suggest that FTIR microspectroscopy can identify different grades of the cigarettes, which may be helpful for tobacco research.

Abstract Image

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利用傅立叶变换红外显微光谱鉴定不同等级的卷烟。

本文采用傅立叶变换红外显微光谱技术鉴定了金湾卷烟（J 组）、银祥一品卷烟（Y 组）和红三环卷烟（H 组）等三个不同等级的卷烟。红外光谱和峰面积比（A2923 /A816、A1601 /A2923、A1601/A920 和 A1072/A816）显示 H 组、Y 组和 J 组之间存在显著差异，反映了化学成分随着等级的提高而发生的变化。根据上述峰面积比进行了判别分析，识别 H、Y 和 J 组的准确率达到 100%。主成分分析表明，碳水化合物和蛋白质与卷烟质量密切相关。此外，曲线拟合进一步证实了碳水化合物的结构会因卷烟质量而发生变化。上述结果表明，傅立叶变换红外微光谱技术可以识别不同等级的卷烟，这可能有助于烟草研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 物理-光谱学

CiteScore

8.40

自引率

11.40%

发文量

1364

审稿时长

40 days

期刊介绍： Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (SAA) is an interdisciplinary journal which spans from basic to applied aspects of optical spectroscopy in chemistry, medicine, biology, and materials science. The journal publishes original scientific papers that feature high-quality spectroscopic data and analysis. From the broad range of optical spectroscopies, the emphasis is on electronic, vibrational or rotational spectra of molecules, rather than on spectroscopy based on magnetic moments. Criteria for publication in SAA are novelty, uniqueness, and outstanding quality. Routine applications of spectroscopic techniques and computational methods are not appropriate. Topics of particular interest of Spectrochimica Acta Part A include, but are not limited to: Spectroscopy and dynamics of bioanalytical, biomedical, environmental, and atmospheric sciences, Novel experimental techniques or instrumentation for molecular spectroscopy, Novel theoretical and computational methods, Novel applications in photochemistry and photobiology, Novel interpretational approaches as well as advances in data analysis based on electronic or vibrational spectroscopy.