Evolving Factor Analysis of Synchronous Fluorescence Spectra of Fulvic Acids in the Presence of Aluminum
✍ Scribed by Silva, Carla S. P. C. O.; Esteves da Silva, Joaquim C. G.; Machado, Adélio A. S. C.
- Book ID
- 115362366
- Publisher
- Society for Applied Spectroscopy
- Year
- 1994
- Tongue
- English
- Weight
- 824 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0003-7028
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The variations observed in the synchronous fluorescence spectra of a soil fulvic acid, collected in the north of Portugal, with pH (between 2 and 7) and with C&I) concentration (at pH 3, 4, 5 and 6 and total copper concentrations between 0.005 and 4 mM depending on the pH) were studied by SIMPLISMA,
Evohng factor analysis (EFA) IS a promwng method for the analysis of multlvarlate data with an mtrmstc order When applymg EFA for assessment of peak homogeneity m hqmd chromatography, one has to be aware of mstrumental and expelvnental d8ficulttes Heteroscedastlclty 1s one of the most serious proble