超音速分子ジェット分光分析法の高機能化に関する研究

概要

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A supersonic jet/florescence spectrum is measured either by monitorring fluorescence at λ_<em>=λ_<ex> (resonant synchronous scan luminescence, R-SSL) or by monitoring total fluorescence but blocking florescence at λ_<em>=λ_<ex> (nonresonant synchronous scan luminescence, N-SSL). The R-SSL technique provides a simple spectrum and is useful assignment of the chemical species from a database constructed by accumulating the spectral data of 0-0 transition from reference sources ; the N-SSL technique offers a fingerprinting spectrum and is useful for reliable identification with the standard spectrum. In this study, a technique based on pattern recognition is employed for prediction of the chemical structure of the sample from supersonic jet spectrometry data. The degree of similarity is evaluated quantitatively by calculating a cross correlation factor between the sample and reference molecules. A probability density function is determined fitting the data to a specified equation.The functional group its and its position are also predicted by a similar technique. The pattern recognition provides a method for prediction of the chemical structure and is applicable to the samples that have not yet been measured by supersonic jet spectrometry.
社団法人日本分析化学会の論文
1994-08-05