Journal
ANALYTICA CHIMICA ACTA
Volume 755, Issue -, Pages 37-45Publisher
ELSEVIER
DOI: 10.1016/j.aca.2012.10.024
Keywords
PARAFAC; TSF spectroscopy; Synchronous fluorescence; Trilinear; Three-way array; EEMF layout
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Funding
- Council of Scientific and Industrial Research (CSIR) New Delhi
- CSIR
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In recent years, total synchronous fluorescence (TSF) spectroscopy has become popular for the analysis of multifluorophoric systems. Application of PARAFAC, a popular deconvolution tool, requires trilinear structure in the three-way data array. The present work shows that TSF based three-way array data set of dimension sample x wavelength x Delta lambda does not have trilinear structure and hence it should not be subjected to PARAFAC analysis. This work also proposes that a TSF data set can be converted to an excitation-emission matrix fluorescence (EEMF) like data set which has trilinear structure, so that PARAFAC analysis can be performed on it. This also enables the retrieval of PARAFAC-separated component TSF spectra. (C) 2012 Elsevier B.V. All rights reserved.
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