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Application of parallel computing to speed up chemometrics for GC×GC-TOFMS based metabolic fingerprinting.

Talanta 83, 1289-1294 (2011)
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Parallel computing was tested regarding its ability to speed up chemometric operations for data analysis. A set of metabolic samples from a second hand smoke (SHS) experiment was analyzed with comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (GC×GC-TOFMS). Data was further preprocessed and analyzed. The preprocessing step comprises background correction, smoothing and alignment of the chromatographic signal. Data analysis was performed by applying t-test and partial least squares projection to latent structures discriminant analysis (PLS-DA). The optimization of the algorithm for parallel computing led to a substantial increase in performance. Metabolic fingerprinting showed a discrimination of the samples and indicates a metabolic effect of SHS.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Parallel computing; Chemometrics; Comprehensive two-dimensional gas chromatography; Metabolic fingerprinting
ISSN (print) / ISBN 0039-9140
e-ISSN 0039-9140
Zeitschrift Talanta
Quellenangaben Band: 83, Heft: 4, Seiten: 1289-1294 Artikelnummer: , Supplement: ,
Verlag Elsevier
Begutachtungsstatus Peer reviewed