Search Results - "Ézio Sargentini Junior"
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Potential of Bacterial Isolates from a Stream in Manaus-Amazon to Bioremediate Chromium-Contaminated Environments
Published in Water, air, and soil pollution (01-08-2018)“…Igarapé do Quarenta (IgQ), a stream located in the Manaus-AM, BR, has directly experienced the impacts of urban expansion over the last five decades, which…”
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DETERMINAÇÃO DE MERCÚRIO EM FÍGADO DE TETRÁPODES MARINHOS POR ESPECTROMETRIA DE FLUORESCÊNCIA ATÔMICA ACOPLADA A GERAÇÃO DE VAPOR FRIO (CV-AFS) E ESPECTROMETRIA DE MASSA COM FONTE DE PLASMA INDUTIVAMENTE ACOPLADO (ICP-MS): UMA COMPARAÇÃO SISTEMÁTICA ENTRE AS DUAS TÉCNICAS
Published in Química Nova (2021)Get full text
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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
Published in Environmental monitoring and assessment (01-07-2024)“…Aquatic humic substances (AHS) are defined as an important components of organic matter, being composed as small molecules in a supramolecular structure and…”
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In situ selective determination of methylmercury in river water by diffusive gradient in thin films technique (DGT) using baker's yeast (Saccharomyces cerevisiae) immobilized in agarose gel as binding phase
Published in Analytica chimica acta (05-08-2015)“…Saccharomyces cerevisiae immobilized in agarose gel as binding phase and polyacrylamide as diffusive layer in the diffusive gradient in thin films technique…”
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BIOGEOQUIMICA ESPAÇO-TEMPORAL DA LITEIRA EM AMBIENTE DE FLORESTA NATURAL NA AMAZÔNIA CENTRAL
Published in Química Nova (01-12-2021)“…SPACE-TEMPORAL BIOGEOCHEMISTRY OF THE LITTER IN A NATURAL FOREST ENVIRONMENT IN THE CENTRAL AMAZON. This research was aimed to evaluate the concentration of 15…”
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Influence of environmental conditions on the mercury levels of the sediment along the Balbina Reservoir, Brazilian Amazon
Published in Environmental monitoring and assessment (2021)“…Mercury dynamics in hydroelectric reservoirs have been studied worldwide. In tropical reservoirs, especially in those of the Amazon, the influence of…”
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Bioaccumulation of trace metals in Neoechinorhynchus buttnerae and in its fish host tambaqui (Colossoma macropomum) from fish farms
Published in Environmental science and pollution research international (01-03-2023)“…Fish parasites are excellent bioindicators of environmental contamination because they respond quickly to water pollutant chemicals, and they can accumulate…”
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Reduction of mercury(II) by tropical river humic substances (Rio Negro) — A possible process of the mercury cycle in Brazil
Published in Talanta (Oxford) (04-12-2000)“…The evolution of elemental Hg from its environmental compounds has already been supposed to be an important process within the global mercury cycle. The…”
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Metals, n-Alkanes, Hopanes, and Polycyclic Aromatic Hydrocarbon in Sediments from Three Amazonian Streams Crossing Manaus (Brazil)
Published in Chemistry an international journal (01-06-2020)“…Pollution is increasing in the Amazon region and its real impact is still unclear. Since this region is of great interest to the global community, this study…”
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Seasonal behavior of mercury species in waters and sediments from the Negro River Basin, Amazon, Brazil
Published in Journal of the Brazilian Chemical Society (2007)“…Total (HgT), reactive (HgR) and organic (HgORG) mercury species have been quantified in non-filtered waters collected from the Negro River Basin, Amazon (from…”
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Substâncias húmicas aquáticas: fracionamento molecular e caracterização de rearranjos internos após complexação com íons metálicos
Published in Química nova (01-06-2001)Get full text
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Substâncias húmicas: sistema de fracionamento sequencial por ultrafiltração com base no tamanho molecular
Published in Química nova (01-06-2000)“…A sequential system for fractionation by ultrafiltration (SSFU) equipped with advanced membranes filters (molecular size cut-off: 5, 10, 30, 50 and 100…”
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GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)
Published in Journal of Engineering and Exact Sciences (01-08-2016)“…The Amazon is a region known worldwide for its biodiversity, but also has high mercury levels in various compartments of the environment. In this work, Hg was…”
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ÍNDICE DE GEOACUMULAÇÃO DE MERCÚRIO NA BACIA DO IGARAPÉ DO EDUCANDOS (MANAUS/AMAZONAS)
Published in Journal of Engineering and Exact Sciences (29-08-2016)“…A Amazônia é uma região conhecida mundialmente por sua biodiversidade, mas também por apresentar altos níveis de Hg em diversos compartimentos do ambiente…”
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Extração de matéria orgânica aquática por abaixamento de temperatura: uma metodologia alternativa para manter a identidade da amostra Extraction of aquatic organic matter by temperature decreasing: an alternative methodology to keep the original sample characteristics
Published in Química nova (01-03-2003)“…In this work was developed an alternative methodology to separation of aquatic organic matter (AOM) present in natural river waters. The process is based in…”
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Substâncias húmicas aquáticas: fracionamento molecular e caracterização de rearranjos internos após complexação com íons metálicos
Published in Química nova (01-01-2001)“…The aquatic humic substances (AHS) investigated in this study were conventionally isolated from Rio Negro waters - Amazonas State/Brazil by means of the…”
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Extração de matéria orgânica aquática por abaixamento de temperatura: uma metodologia alternativa para manter a identidade da amostra
Published in Química nova (01-03-2003)Get full text
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