Spectroscopic characteristics of humates isolated from different soil types

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F09%3APU84136" target="_blank" >RIV/00216305:26310/09:PU84136 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Spectroscopic characteristics of humates isolated from different soil types

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Spectroscopic characteristics of humates isolated from different soil types

Popis výsledku anglicky

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.

Druh

O - Ostatní výsledky

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

<a href="/cs/project/GP104%2F03%2FD135" target="_blank" >GP104/03/D135: Studium koloidních vlastností lignitických huminových látek</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů