Publication detail

Characterization of Compost and Soil Humic Substances by Fluorescence Spectroscopy

POSPÍŠILOVÁ, Ľ. DRÁPELOVÁ, I. ENEV, V.

Original Title

Characterization of Compost and Soil Humic Substances by Fluorescence Spectroscopy

English Title

Characterization of Compost and Soil Humic Substances by Fluorescence Spectroscopy

Type

journal article - other

Language

en

Original Abstract

Quality of soil humic substances and compost quality was assessed using different techniques of fluorescence spectroscopy. Emission, excitation, synchronous and emission-excitation matrix help us to characterize different fluorophores in humic substances molecule. Content of stabile carbon forms in soil was assessed by humic substances fractionation. Content of labile water extractable carbon and nitrogen was determined by analyzer Shimadzu TOC-VCSH with chemo-luminescent detection in infrared spectral region. Results showed that compost amendment caused changes in both stabile (recalcitrant) and labile carbon content. Humic substances isolated from compost consist mainly of simple structural components of wide molecular heterogeneity and low molecular weight. Humification degree and content of conjugated fluorophores in compost was lower compared with stabile soil humic substances. The last contained more conjugated aromatic p-electron systems with electron-withdrawing functional groups, which are responsible for the fluorescence shift to lower energy levels or longer wavelengths.

English abstract

Quality of soil humic substances and compost quality was assessed using different techniques of fluorescence spectroscopy. Emission, excitation, synchronous and emission-excitation matrix help us to characterize different fluorophores in humic substances molecule. Content of stabile carbon forms in soil was assessed by humic substances fractionation. Content of labile water extractable carbon and nitrogen was determined by analyzer Shimadzu TOC-VCSH with chemo-luminescent detection in infrared spectral region. Results showed that compost amendment caused changes in both stabile (recalcitrant) and labile carbon content. Humic substances isolated from compost consist mainly of simple structural components of wide molecular heterogeneity and low molecular weight. Humification degree and content of conjugated fluorophores in compost was lower compared with stabile soil humic substances. The last contained more conjugated aromatic p-electron systems with electron-withdrawing functional groups, which are responsible for the fluorescence shift to lower energy levels or longer wavelengths.

Keywords

Soil humic substances, compost and fluorescence spectroscopy

RIV year

2014

Released

30.04.2014

Publisher

David Publishing Company

Location

New York, US

ISBN

1934-7391

Periodical

Journal of Life Sciences

Year of study

8

Number

4

State

US

Pages from

364

Pages to

372

Pages count

9

Documents

BibTex


@article{BUT109055,
  author="Ľubica {Pospíšilová} and Ida {Drápelová} and Vojtěch {Enev}",
  title="Characterization of Compost and Soil Humic Substances by Fluorescence Spectroscopy",
  annote="Quality of soil humic substances and compost quality was assessed using different techniques of fluorescence spectroscopy. Emission, excitation, synchronous and emission-excitation matrix help us to characterize different fluorophores in humic substances molecule. Content of stabile carbon forms in soil was assessed by humic substances fractionation. Content of labile water extractable carbon and nitrogen was determined by analyzer Shimadzu TOC-VCSH with chemo-luminescent detection in infrared spectral region. Results showed that compost amendment caused changes in both stabile (recalcitrant) and labile carbon content. Humic substances isolated from compost consist mainly of simple structural components of wide molecular heterogeneity and low molecular weight. Humification degree and content of conjugated fluorophores in compost was lower compared with stabile soil humic substances. The last contained more conjugated aromatic p-electron systems with electron-withdrawing functional groups, which are responsible for the fluorescence shift to lower energy levels or longer wavelengths.",
  address="David Publishing Company",
  chapter="109055",
  institution="David Publishing Company",
  number="4",
  volume="8",
  year="2014",
  month="april",
  pages="364--372",
  publisher="David Publishing Company",
  type="journal article - other"
}