FTIR在物质结构分析方面的研究进展

发布时间：2018-04-12 09:12

本文选题：傅里叶变换红外光谱 + 结构分析　；参考：《光谱学与光谱分析》2017年01期

【摘要】：从三聚氰胺、"瘦肉精"、苏丹红、塑化剂、地沟油到如今的"皮革奶",动物源性食品安全问题层出不穷,动物养殖环节中非法添加物的使用、高风险物质的滥用问题日益突出,如何实现对未知添加物的筛查与确证面临严峻考验。红外光谱,与核磁共振谱、质谱、紫外光谱一样,是进行结构分析的有力工具。目前,在畜产品质量安全方面,应用傅里叶红外光谱(FTIR)对这些添加物进行分析的研究很少。本文总结了当前FTIR物质结构分析方面的应用,包括对已知化合物光谱特征、分子构象、稳定性、同系物、衍生物、反应产物等的分析,对大分子物质官能团的推断,对未知物分子结构式的确证和对复杂生物样品的组分分析或种类辨别,以期形成对动物养殖环节中非法添加物或高风险物质筛查的新思路,希望建立针对动物养殖环节中可能出现的有危害性的添加物的红外光谱库、官能团库,在此基础上形成未知添加物的综合解析与确认技术规程,对可能引起重大食品安全事故的添加物进行早期预警,从而防患于未然。
[Abstract]:From melamine, "lean meat essence", Sudan red, plasticizer, gutter oil to today's "leather milk", animal origin food safety problems emerge in endlessly, the use of illegal additives in animal breeding links, and the abuse of high-risk substances become increasingly prominent.How to realize the screening and confirmation of unknown additives is facing a severe test.Infrared spectroscopy, like NMR, MS and UV spectra, is a powerful tool for structural analysis.At present, there are few studies on the analysis of these additives by FTIR in the aspect of quality and safety of animal products.In this paper, the applications in the analysis of the structure of FTIR materials are summarized, including the analysis of the spectral characteristics, molecular conformation, stability, homologues, derivatives and reaction products of known compounds, and the inference of the functional groups of macromolecules.Confirmation of molecular structure of unknown substances and identification of components or species of complex biological samples, with a view to forming new ideas for screening illegal additives or high-risk substances in animal breeding,It is hoped that the infrared spectrum library and functional group library of harmful additives that may appear in animal breeding links will be established, and on this basis, the comprehensive analytical and confirmation technical rules for unknown additives will be formed.Early warning of additives that may cause major food safety incidents.
【作者单位】：中国农业科学院农业质量标准与检测技术研究所;
【基金】：公益性行业(农业)科技项目(2012030-23)资助
【分类号】：S859.8;O657.33

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