Method for identification of chromatographic peaks

Details Method for identification of chromatographic peaks Method for identification of chromatographic peaks

1997-07-23

1999-05-18

Williams, Hezron

Measuring and testing

Gas analysis

Gas chromatography

364498, 210656, G01N30/02

Patent

active

059051922

ABSTRACT:
Method and apparatus are provided for peak identification of sample peaks in a chromatogram, wherein at least one group of standard peaks in standard peak series is matched to at least one group of sample peaks in a sample peak series so as to perform proper identification of the sample peaks in the sample peak group. In a preferred method, a succession of retention time windows are determined according to the characteristic retention times of the standard peaks and according to steps for determining shift, stretch, and distort parameters. The retention time windows are located with respect to the sample peak series and in accordance with the shift, stretch, and distort parameters so as to capture only certain ones of the sample peaks in the sample peak series. The shift, stretch, and distort parameters are used to position the retention time windows for improved matching of the standard peaks in the standard peak group to the captured sample peaks.

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