Characterization of aquatic humic substances extracted from the Preto River

• Grant number: 12/06403-7
• Support Opportunities: Scholarships abroad - Research Internship - Master's degree
• Start date: September 17, 2012
• End date: November 16, 2012
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Márcia Cristina Bisinoti
• Grantee: Amanda Maria Tadini
• Supervisor: Alessandro Piccolo
• Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil
• Institution abroad: Università degli Studi di Napoli Frederico II (UNINA), Italy
• Associated to the scholarship: 10/13879-2 - Humic substances and chromium ions interaction and proposal of a labile organic matter indicator, BP.MS

Abstract

Characterization of Aquatic Humic Substances (AHS) is a basis for the interpretation of its role in the environment. Several researchers have focused their study on the use of new techniques for characterization of the SHA. In the master's project entitled "Interaction between Humic Substances and Chromium ions and Proposal for an indicator of labile organic matter" SHA extracted from the waters of Preto River, the main Turvo/Grande watershed in two distinct periods: dry and rainy. The group of prof. Alessandro Piccolo is an international reference in the characterization of SHA, as well as proposing the theory Supra. In this context, this project has as main objective to characterize the SHA samples, obtained from this dissertation, employing the techniques of Fourier Transform Spectrometry, Elemental Analysis, Nuclear Magnetic Resonance and off-line TMAH-thermochemolysis-GC-MS. The aim is also conducting studies to assess whether the theory applies to the SHA supramolecular extracted from the Preto River. The results generated in this work will be relevant for understanding the possible functional groups present in the structures of the SHA, as well as to hypothesize a possible structure of the SHA for that water body studied. Thus, this project will help generate results virtually unknown to the region, about the characteristics of Aquatic Humic Substances and assist in other work undertaken by the group on complexing with metals and organic compounds. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

TADINI, AMANDA MARIA; PANTANO, GLAUCIA; DE TOFFOLI, ANA LUCIA; FONTAINE, BARBARA; SPACCINI, RICCARDO; PICCOLO, ALESSANDRO; MOREIRA, ALTAIR BENEDITO; BISINOTI, MARCIA CRISTINA. Off-line TMAH-GC/MS and NMR characterization of humic substances extracted from river sediments of northwestern Sao Paulo under different soil uses. Science of The Total Environment, v. 506, p. 234-240, FEB 15 2015. (10/13879-2, 12/23066-4, 10/09271-9, 12/06403-7)

TADINI, A. M.; CONSTANTINO, I. C.; NUZZO, A.; SPACCINI, R.; PICCOLO, A.; MOREIRA, A. B.; BISINOTI, M. C.. Characterization of typical aquatic humic substances in areas of sugarcane cultivation in Brazil using tetramethylammonium hydroxide thermochemolysis. Science of The Total Environment, v. 518, p. 201-208, JUN 15 2015. (10/13879-2, 12/23066-4, 10/09271-9, 12/06403-7)