| 摘要 |
This invention enables accurate comparative analysis by converting, with a low load and without omitting information, data of multiple samples collected by LC/MS, GC/MS, etc., into a two-dimensional table format. Once LC/MS measurement data of multiple samples is acquired and extracted ion chromatograms (XICs) are prepared (S1, S2), time axis adjustment is performed to correct the retention time shift (S3), and thereafter, processing is performed to correct the data omissions occurring in the beginning and end portions of the data due to the time axis adjustment (S5). Specifically, in the retention time range in which there are data omissions, the data of all the samples is deleted, and the beginnings and ends of the data are aligned. Thereafter, one-dimensional tables for each XIC are created comprising a list of signal intensity values, and a long one-dimensional table is created by joining the one-dimensional tables of the XICs of one sample in m/z order (S6), and a two-dimensional table is created by lining up the one-dimensional tables of the multiple samples in another dimensional direction (S7). |
