Abstract
Elemental composition of humic acids from raised bog peat profiles
Highlights
Due to the decomposition process organic matter in fens has been transformed into more stable and complex macromolecules than it is in the mire vegetation (Wei et al 2014)
One of the most advanced and novel methods for the determination and characterization of humic substances can be 3D fluorescence spectroscopy. This method can be used as a non-destructive tool to quantify the decomposition degree of organic matter of any kind, and it requires a small volume of aqueous sample at low concentration (Wei et al 2014). 3D fluorescence spectroscopy provides an important information on the chemical nature of humic substances – on their position, shift and intensity of fluorescence peaks, – and all those data can be correlated to structural information, such as functional groups, polycondensation, aromaticity, heterogeneity and various dynamic properties related to their intramolecular and intermolecular interactions (Chen et al 2003)
All the information obtained from 3D fluorescence spectroscopy analysis can be used in parallel factor analysis (PARAFAC analysis), what is being used to determine the similarity between samples or groups of samples and allows evaluating particular structural components of humic substances
Summary
Due to the decomposition process organic matter in fens has been transformed into more stable and complex macromolecules than it is in the mire vegetation (Wei et al 2014). One of the most advanced and novel methods for the determination and characterization of humic substances can be 3D fluorescence spectroscopy. This method can be used as a non-destructive tool to quantify the decomposition degree of organic matter of any kind, and it requires a small volume of aqueous sample at low concentration (Wei et al 2014). The objective of this study was to conduct a comprehensive structural characterization of fen peat humic substances
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