Terahertz signatures and quantitative analysis of glucose anhydrate and monohydrate mixture
Yan, Hui1,2,3; Fan, Wenhui2,3,4; Chen, Xu3; Liu, Lutao2,3; Wang, Hanqi2,3; Jiang, Xiaoqiang2,3
刊名Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
2021-09-05
卷号258
关键词Glucose Anhydrate and monohydrate Mixture THz signature Quantitative analysis
ISSN号13861425
DOI10.1016/j.saa.2021.119825
产权排序1
英文摘要

Glucose, as the main energy carrier and significant source of nutrition, generally comes in two available forms of anhydrate and monohydrate in commercial production. Considering their respective application occasions, proper identification of glucose in single composition or binary-mixture and quantification of the mixture are crucial in industry monitoring to guarantee merchandise quality. Simultaneously, public confusions of glucose are rather ubiquitous partly due to anhydrate and monohydrate with identical white crystalline appearance. In this paper, utilizing the molecular fingerprints of terahertz (THz) technology that are corresponding to structural characteristics of anhydrous and hydrated form, THz signatures of glucose anhydrate, monohydrate and their mixture, as well as THz spectral transformation from monohydrate to anhydrate with the dehydrating process are systematically studied. Some visible peaks of monohydrate were noted at 1.82 and 1.99 THz signifying the presence of hydrated structure. However, with the dehydrating process, the peaks related to the hydrated structure are not very apparent when the peaks at 1.44 and 2.08 THz appear due to changes in the molecular structure of anhydrate, which provide clear indication for hydrogen-bond network reconstruction at the micro level. Furthermore, characteristic peaks at 1.44 and 1.82 THz can be specified as the main quantitative indicators for quantitative detection. The linear relationships between the amplitudes of characteristic peaks and the percentage compositions of anhydrate and monohydrate are revealed. Three commercially available brands of edible glucose powder A, B, C were effectively identified by THz signatures. While powder C was recognized as binary-mixture and the proportion of anhydrate and monohydrate was further quantified. THz spectroscopy technology has advantages of direct recognition, simple quantitative model based on THz absorption peaks, and no need for complicated chemical treatment. It may be potentially shed light on industrial monitoring of glucose production and other related mixture in the future. © 2021 Elsevier B.V.

语种英语
出版者Elsevier B.V.
内容类型期刊论文
源URL[http://ir.opt.ac.cn/handle/181661/94705]  
专题西安光学精密机械研究所_瞬态光学技术国家重点实验室
通讯作者Fan, Wenhui
作者单位1.College of Science, Zhongyuan University of Technology, Zhengzhou 450007, China; Zhengzhou Key Laboratory of Low-dimensional Quantum Materials and Devices;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China;
4.Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan; 030006, China
推荐引用方式
GB/T 7714
Yan, Hui,Fan, Wenhui,Chen, Xu,et al. Terahertz signatures and quantitative analysis of glucose anhydrate and monohydrate mixture[J]. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy,2021,258.
APA Yan, Hui,Fan, Wenhui,Chen, Xu,Liu, Lutao,Wang, Hanqi,&Jiang, Xiaoqiang.(2021).Terahertz signatures and quantitative analysis of glucose anhydrate and monohydrate mixture.Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy,258.
MLA Yan, Hui,et al."Terahertz signatures and quantitative analysis of glucose anhydrate and monohydrate mixture".Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy 258(2021).
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