Liquid chromatographic analysis apparatus and liquid chromatographic analyzing method
AssigneeHitachi, Ltd.
InventorsKimihiko Ishii, Yoshiaki Yamada, Kiyotoshi Mori
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Abstract
In a chromatograph comprising a pump, a sample injecting unit, a column, a photo-diode array detector and a data processing unit having a spectrum library of registered spectrums of known components, a spectrum selected in advance from the spectrum library is compared with a spectrum of each of peaks in an actual sample. Thereby, it is possible to reduce the number of spectrum comparisons required for identification, and it is further possible to perform identification quickly since the identification can be performed during analysis.
Claims8
An analysis method using a liquid chromatographic analysis apparatus having a library storing retention time and spectrum data respectively corresponding to components contained in a sample, for measuring signal intensity and spectra with retention time after separating said sample mixed with a single component or plural components by using a column, and forming so as to output a chromatogram from said signal intensity and said retention time, comprising:
- selecting said component to be identified from said library before analyzing said sample;
- comparing said spectrum data obtained by analyzing said sample with said spectrum of said selected component and calculating similarity between said spectrum data;
- and
- displaying said similarity.
Dependencies are inferred from the claim text.