Study Into the Changes in Soil Organic Matter, Caused By Laboratory Simulated Fires in Four Slovak Soils 1. UV-VIS Spectrum Analysis

Sirotiak Maroš (), Pastierová Alica () and Blinová Lenka ()
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Sirotiak Maroš: Slovak University Of Technology In Bratislava, Faculty Of Materials Science And Technology, Institute Of Integrated Safety, Ulica Jána Bottu 2781/25, 917 24 Trnava, Slovak Republic
Pastierová Alica: Slovak University Of Technology In Bratislava, Faculty Of Materials Science And Technology, Institute Of Integrated Safety, Ulica Jána Bottu 2781/25, 917 24 Trnava, Slovak Republic
Blinová Lenka: Slovak University Of Technology In Bratislava, Faculty Of Materials Science And Technology, Institute Of Integrated Safety, Ulica Jána Bottu 2781/25, 917 24 Trnava, Slovak Republic

Research Papers Faculty of Materials Science and Technology Slovak University of Technology, 2021, vol. 29, issue 48, 131-142

Abstract: The study was focused on describing ultraviolet-visible spectra of the humic substances, humic acids and fulvic acids isolated from four Slovak soils. The samples were heated in a laboratory furnace, to simulate soil behaviour during fires. The absorbances at the wavelengths corresponding to the selected chromophores and specific wavelength for groups of substances were compared. Analysis of the UV -VIS spectra of the extracted humic substances may indicate the directions of interest in the changes in soil organic matter, along with the changes in external conditions, such as natural fires.

Keywords: Fire; Humic substances (HS); Humic acid (HA); Fulvic acid (FA); UV-VIS spectrophotometry (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:repfms:v:29:y:2021:i:48:p:131-142:n:11

DOI: 10.2478/rput-2021-0014

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