Detail publikace

Spectroscopic characteristics of humates isolated from different soil types

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

FASUROVÁ, N.

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"
}