Maria Rosaria Provenzano

TL;DR: Fifty samples of humic acids and fulvic acids isolated from various soils and soil-related materials (including paleosols, peat, leonardite, composted and earthworm-composted organic materials, sewage sludges, and materials synthesized by soil fungi) have been investigated by fluorescence spectrosc as mentioned in this paper.

TL;DR: In this article, eleven standard and reference fulvic acids (FA) and humic acids (HA) of aquatic and terrestrial origin from the collection of the International Humic Substances Society have been studied by chemical and spectroscopic methods.

TL;DR: In this article, the laser induced breakdown spectroscopy (LIBS) technique has been applied to the determination of total contents of heavy metals in a number of reference soil samples.

TL;DR: In this paper, the authors aimed at characterizing compost maturity and organic matter transformation during this process, by the use of nondestructive spectroscopic and thermal techniques, together with some chemical analysis.

TL;DR: Investigation of the structural transformations occurring in organic matter and their relationships with organic matter stability during the composting of two different solid olive-mill residues showed that the biodegradation of the heterogeneous raw material is progressive and can be mainly attributed to a loss of aliphatic and peptidic structures and to an increase of the aromatic structures which essentially occurs during the maturity phase.