publication . Article . 1999

PARAFAC2—PART II. MODELING CHROMATOGRAPHIC DATA WITH RETENTION TIME SHIFTS

Rasmus Bro; Claus A. Andersson; Henk A. L. Kiers;
Restricted English
  • Published: 01 Jan 1999
Abstract
SUMMARY This paper offers an approach for handling retention time shifts in resolving chromatographic data using the PARAFAC2 model. In Part I of this series an algorithm for PARAFAC2 was developed and extended toN-way arrays. It was discussed that the PARAFAC2 model has a number of attractive features. It is unique under mild conditions though it puts fewer restrictions on the data than the well-known PARAFAC1 model. This has important implications for the modeling of chromatographic data in which retention time shifts can be regarded as a violation of the assumption of parallel proportional profiles underlying the PARAFAC1 model. The PARAFAC2 model does not as...
Subjects
free text keywords: multiway, curve resolution, fluorescence spectroscopy, shifted profiles, UNIQUENESS, RESOLUTION, Analytical Chemistry, Applied Mathematics, Sugar industry, Chromatographic separation, Mathematics, Econometrics, Elution, Chromatography, Matrix (mathematics)
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