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FASUROVÁ, N.
Originální název
Spectroscopic characteristics of humates isolated from different soil types
Typ
přednáška
Jazyk
angličtina
Originální abstrakt
In this project two optical metods (UV-VIS and SFS) were used. Five Czech soil humates samples (Leptic Cambisol, Haplic Cambisol, Eutric Cambisol 1-arable soil, Eutric Cambisol 2-grassland, Haplic Chernozem) were compared. Absorbance in spectral range 300-700 nm was measured using optical fiber on spectrometer Varian Cary 50 Probe. Fluorescence spectra (SFS) within the range 255-655 nm were measured by spectrofluorimeter Aminco Bowman. From UV- VIS spectra colour indexes (Q4/6) were determined. Fluorescence indexes (F) were calculated from SFS spectra at ??=55 nm (as a ratio RFI468/RFI522). The same main fluorophore at wavelengths ?ex./?em.= 467/522 nm was observed in all soil humates. Samples were also compared using parameters of humic substances quality, carbon content, fluorescence and colour indexes.
Klíčová slova
soil humates, UV-Vis spectroscopy, SFS spectroscopy
Autoři
Vydáno
14. 9. 2009
Nakladatel
Slovenská pedologická společnost, SPU Nitra
Místo
Šoporňa, SK
Strany od
42
Strany do
45
Strany počet
4
BibTex
@misc{BUT65545, author="Naděžda {Fasurová}", title="Spectroscopic characteristics of humates isolated from different soil types", year="2009", pages="42--45", publisher="Slovenská pedologická společnost, SPU Nitra", address="Šoporňa, SK", note="lecture" }