Seasonal studies of aquatic humic substances from Amazon rivers: characterization and interaction with Cu (II), Fe (II), and Al (III) using EEM-PARAFAC and 2D FTIR correlation analyses

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorBrazilian Agricultural Research Corporation-
Autor(es): dc.contributorUniversity Toulon-
Autor(es): dc.contributorUniversity of Naples Federico II-
Autor(es): dc.contributorFederal University of Amazonas (UFAM)-
Autor(es): dc.contributorNational Institute of Amazonian Research (INPA)-
Autor(es): dc.creatorConstantino, Isabela Carreira-
Autor(es): dc.creatorBento, Lucas Raimundo-
Autor(es): dc.creatorSantos, Vinicius Sarracini-
Autor(es): dc.creatorda Silva, Leila Soares-
Autor(es): dc.creatorTadini, Amanda Maria-
Autor(es): dc.creatorMounier, Stéphane-
Autor(es): dc.creatorPiccolo, Alessandro-
Autor(es): dc.creatorSpaccini, Riccardo-
Autor(es): dc.creatorCornélio, Marinônio Lopes-
Autor(es): dc.creatorPaschoal, Fabiana Maria Monteiro-
Autor(es): dc.creatorJunior, Ézio Sargentini-
Autor(es): dc.creatorMoreira, Altair Benedito-
Autor(es): dc.creatorBisinoti, Márcia Cristina-
Data de aceite: dc.date.accessioned2025-08-21T20:32:09Z-
Data de disponibilização: dc.date.available2025-08-21T20:32:09Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s10661-024-12729-5-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/302282-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/302282-
Descrição: dc.descriptionAquatic humic substances (AHS) are defined as an important components of organic matter, being composed as small molecules in a supramolecular structure and can interact with metallic ions, thereby altering the bioavailability of these species. To better understand this behavior, AHS were extracted and characterized from Negro River, located near Manaus city and Carú River, that is situated in Itacoatiara city, an area experiencing increasing anthropogenic actions; both were characterized as blackwater rivers. The AHS were characterized by 13C nuclear magnetic ressonance and thermochemolysis GC–MS to obtain structural characteristics. Interaction studies with Cu (II), Al (III), and Fe (III) were investigated using fluorescence spectroscopy applied to parallel factor analysis (PARAFAC) and two-dimensional correlation spectroscopy with Fourier transform infrared spectroscopy (2D-COS FTIR). The AHS from dry season had more aromatic fractions not derived from lignin and had higher content of alkyls moities from microbial sources and vegetal tissues of autochthonous origin, while AHS isolated in the rainy season showed more metals in its molecular architecture, lignin units, and polysacharide structures. The study showed that AHS composition from rainy season were able to interact with Al (III), Fe (III), and Cu (II). Two fluorescent components were identified as responsible for interaction: C1 (blue-shifted) and C2 (red-shifted). C1 showed higher complexation capacities but with lower complexation stability constants (KML ranged from 0.3 to 7.9 × 105) than C2 (KML ranged from 3.1 to 10.0 × 105). 2D-COS FTIR showed that the COO− and C-O in phenolic were the most important functional groups for interaction with studied metallic ions. Graphical Abstract: (Figure presented.)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDepartment of Chemistry and Environmental Sciences Institute of Biosciences Humanities and Exact Sciences (IBILCE) São Paulo State University (UNESP) São José Do Rio Preto-
Descrição: dc.descriptionBrazilian Agricultural Research Corporation, São Carlos-
Descrição: dc.descriptionMediterranean Institute of Oceanography (MIO) University Toulon-
Descrição: dc.descriptionThe Interdepartmental Research Centre On Nuclear Magnetic Resonance for the Environment Agroo-Food and New Materials (CERMANU) University of Naples Federico II, Portici-
Descrição: dc.descriptionDepartment of Physics Institute of Biosciences Humanities and Exact Sciences (IBILCE) São Paulo State University (UNESP), São José Do Rio Preto-
Descrição: dc.descriptionInstitute of Exact Sciences and Technology Federal University of Amazonas (UFAM), Amazonas-
Descrição: dc.descriptionNational Institute of Amazonian Research (INPA), Amazonas-
Descrição: dc.descriptionDepartment of Chemistry and Environmental Sciences Institute of Biosciences Humanities and Exact Sciences (IBILCE) São Paulo State University (UNESP) São José Do Rio Preto-
Descrição: dc.descriptionDepartment of Physics Institute of Biosciences Humanities and Exact Sciences (IBILCE) São Paulo State University (UNESP), São José Do Rio Preto-
Descrição: dc.descriptionFAPESP: 15/22954-1-
Descrição: dc.descriptionFAPESP: 17/05575-2-
Descrição: dc.descriptionCNPq: 303232/2022-6-
Idioma: dc.languageen-
Relação: dc.relationEnvironmental Monitoring and Assessment-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subject13C nuclear magnetic resonance-
Palavras-chave: dc.subjectAmazonian-
Palavras-chave: dc.subjectAquatic humic substances-
Palavras-chave: dc.subjectComplexation-
Palavras-chave: dc.subjectFTIR two-dimensional correlation spectroscopy-
Título: dc.titleSeasonal studies of aquatic humic substances from Amazon rivers: characterization and interaction with Cu (II), Fe (II), and Al (III) using EEM-PARAFAC and 2D FTIR correlation analyses-
Tipo de arquivo: dc.typelivro digital-
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