Publication detail

Spectroscopic characteristics of humates isolated from different soil types

FASUROVÁ, N.

Original Title

Type

lecture

Language

English

Original Abstract

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.

Keywords

soil humates, UV-Vis spectroscopy, SFS spectroscopy

Authors

FASUROVÁ, N.

Released

14. 9. 2009

Publisher

Slovenská pedologická společnost, SPU Nitra

Location

Šoporňa, SK

Pages from

Pages to

Pages count

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"
}