Patent ID: 6816789
Filing Date: 2004-11-09
Classification: G01N

Abstract:
A computer implemented method for determining a similarity or dissimilarity between chromatogram data sets, comprising:a) receiving a chromatogram data; b) adjusting the chromatogram data in a region of interest by centering an analysis window around one or more trace features in the region of interest; c) reducing the chromatogram data to a data set, based at least on an average time for the chromatogram data in the region of interest by determining an integral of the chromatogram data and plotting against a time axis, determining a set of time points, and forming arrays of data set values based upon the set of time points and corresponding integral values for the set of time points; d) repeating the steps of (a) to (c) for at least one additional chromatogram data; e) choosing a reference data set from among the data sets obtained from the steps of (a) to (d); and f) comparing the reference data set to a remaining data set not chosen in step (e) to determine a similarity or dissimilarity between the reference data set and the remaining data set.