Extensions to peak alignment using reduced set mapping and classification of LC-UV data from peptide mapping

• Peak alignment using reduced set mapping (PARS) is extended with a new baseline approximation and a new dendrogram alignment scheme, which is designed to avoid the issue of selecting a target chromatogram for the alignment. Two data sets with LC/UV data are studied and it is shown that peak alignment with PARS increases the class separation substantially in the principal component score space. The results indicate that it is possible to use PARS for calibration transfer of multivariate models of chromatographic data.

Subject headings

NATURVETENSKAP  -- Kemi -- Analytisk kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Analytical Chemistry (hsv//eng)

Keyword

peak shift; peak alignment; peptide mapping; classification; PARS; chromatography

Analytical chemistry

Analytisk kemi

Publication and Content Type

ref (subject category)

art (subject category)