Document Detail

Chemometrics description of measurement error structure: study of an ultrafast absorption spectroscopy experiment.
MedLine Citation:
PMID:  19427455     Owner:  NLM     Status:  PubMed-not-MEDLINE    
The error structure inherent to a transient absorption spectroscopy kinetic experiment is described through the examination of the related measurement error covariance matrices in the time and the spectral direction. The systematic approach proposed by Wentzell's group to characterize the measurement error covariance matrices is used for this purpose. The goals of this study are identifying and modelling the factors contributing to the error measurement and proposing a weighting error-based scheme that can be generally used when analysing data coming from this experimental setup. From the analysis performed, independent noise structure is associated with the time direction of the data sets, whereas the spectral direction is affected by two sources of correlated errors, which can be related to the probe spectrum and to the mean signal registered.
Lionel Blanchet; Julien Réhault; Cyril Ruckebusch; Jean Pierre Huvenne; Romà Tauler; Anna de Juan
Related Documents :
20172885 - Teamwork behaviours and errors during neonatal resuscitation.
7644325 - Extraction of relief from visual motion.
20675035 - Accuracy of sonographic fetal weight estimation of fetuses with a birth weight of 1500 ...
18288255 - Decorrelation of the true and estimated classifier errors in high-dimensional settings.
19331445 - Correction to arvanitogiannis and shizgal (2008).
16984085 - Dealing with gene expression missing data.
Publication Detail:
Type:  Journal Article     Date:  2008-11-25
Journal Detail:
Title:  Analytica chimica acta     Volume:  642     ISSN:  1873-4324     ISO Abbreviation:  Anal. Chim. Acta     Publication Date:  2009 May 
Date Detail:
Created Date:  2009-05-11     Completed Date:  2009-08-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370534     Medline TA:  Anal Chim Acta     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  19-26     Citation Subset:  -    
Laboratoire de Spectrochimie Infrarouge et Raman, UMR CNRS 8516, Université des Sciences et Technologies de Lille, bât C5, 59655 Villeneuve d'Ascq, France.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Classification of Brazilian soils by using LIBS and variable selection in the wavelet domain.
Next Document:  Drift correction in multivariate calibration models using on-line reference measurements.