近赤外分光法を用いる化学的情報に基づいたプラスチックと食品素材の分析方法に関する研究(博士論文要録)

概要

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Near infrared (NIR) spectroscopy uses the radiation wave region between 700 and 2500 nm. NIR spectroscopy has recently been developed and used as a rapid, nondestructive and convenient technique for the qualitative and quantitative compositional analysis of many kinds of materials. Although the practical applications of NIR spectroscopy for numerous industrial purpose are extensive, it is desired to build up the spectral analysis methods based on the chemical basis. In addition, the development of a low-cost and downsized instrument may be expected to tremendously expand the application of NIRS. In this study, I have attempted to distinguish some plastics and foodstuffs using a portable NIRS instrument that relies not only on a statistical and mathematical approach, but also on a chemical interpretation of the NIR spectra. The strategy was to propose a qualitative discrimination and a quantitative analysis of materials coupled with chemical information based on their compositional differences. NIRS can not become a truly useful and reliable analytical method either practically or scientifically without this strategy. It is planned to continue the basic interpretation of NIR spectra with focusing on various foodstuffs, and thus hopefully provide a useful analytical technique for many of industrial needs.
社団法人日本分析化学会の論文
2005-05-05