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Methods and spectroscopic instruments for analyzing foods in particular using multi-channel processing of spectroscopic data
Methods and spectroscopic instruments for analyzing foods in particular using multi-channel processing of spectroscopic data
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机译:用于分析食物的方法和光谱仪器,尤其是使用光谱数据的多通道处理
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摘要
A method for the spectroscopic analysis of a sample is provided. The method including the illumination of the sample to be analyzed by a plurality of luminous excitation rays with respective wavelengths; the acquisition and the pre-treatment of frontal fluorescence spectra, each spectrum corresponding to a respective luminous excitation ray; for each sample, the calculation of a score vector by applying a multi-channel statistical model to the pre-treated spectra; and the determination of at least one parameter selected from a quality indicator of the sample and a parameter characterizing a method that has been applied to the sample, from said score vector. The average spectral distance between the luminous excitation rays is at least 50 nm, over a spectral range of at least 100 nm. The invention also relates to an appliance for implementing such a method.
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