A chromatographic analyzer is provided for facilitating curve filling by the linear least-square method for a chromatogram that contains a plurality of overlapping peaks. A chromatographic data processor executes fitting processing to each peak in an arbitrary time region having the plurality of peaks of the chromatogram starting from the front or back side of time region and the processed peaks are subtracted from the chromatogram in the time region so that the plurality of peaks in the chromatogram can be separated from one another.

 
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> Inverse fourier transform method, phase characterization method of optical components from transmission and group delay measurements as well as a system for performing the method

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