Search Results - "Marco Tadeu Grassi"

Alternative Ecosorbent for the Determination of Trihalomethanes in Aqueous Samples in SPME Mode by Sánchez-Duque, Gustavo, Lozada-Castro, Juan José, Hara, Emerson Luis Yoshio, Grassi, Marco Tadeu, Rosero-Moreano, Milton, Ríos-Acevedo, Jhon Jairo

“…A new sorbent material based on modified clay with ionic liquid immobilized into an agarose film was developed as part of this study. It was applied to…”
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A preliminary nationwide survey of the presence of emerging contaminants in drinking and source waters in Brazil by Machado, Kelly C., Grassi, Marco Tadeu, Vidal, Cristiane, Pescara, Igor C., Jardim, Wilson F., Fernandes, Andreia N., Sodré, Fernando F., Almeida, Fernanda V., Santana, Joyce S., Canela, Maria Cristina, Nunes, Camila R.O., Bichinho, Kátia M., Severo, Flaviana J.R.

“…This is the first nationwide survey of emerging contaminants in Brazilian waters. One hundred drinking water samples were investigated in 22 Brazilian state…”
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Impact of polycyclic aromatic hydrocarbons in mangroves from the Colombian pacific coast: Evaluation in sediments and bivalves by Angulo-Cuero, Jesús, Grassi, Marco Tadeu, Dolatto, Rafael Garrett, Palacio-Cortés, Angela María, Rosero-Moreano, Milton, Aristizábal, Beatriz H.

“…Bivalves and sediments were sampled from mangroves in the Pacific Coast of Colombia to evaluate the concentrations of the 16 polycyclic aromatic hydrocarbons…”
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Accumulation of nylon microplastics and polybrominated diphenyl ethers and effects on gut microbial community of Chironomus sancticaroli by Palacio-Cortés, Angela Maria, Horton, Alice A., Newbold, Lindsay, Spurgeon, David, Lahive, Elma, Pereira, M. Gloria, Grassi, Marco Tadeu, Moura, Mauricio Osvaldo, Disner, Geonildo Rodrigo, Cestari, Marta Margaret, Gweon, Hyun S., Navarro-Silva, Mario Antônio

“…Microplastics (MP) are emerging contaminants with the capacity to bind and transport hydrophobic organic compounds of environmental concern, such as…”
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Exploratory evaluation of iron and its speciation in surface waters of Admiralty Bay, King George Island, Antarctica by SIERPINSKI, SHEISA F.D., BAQUER, LUIS MIGUEL LAGLERA, MARTINS, CÉSAR C., GRASSI, MARCO TADEU

“…Abstract The determination of dissolved iron concentrations and speciation was conducted for the first time in surface seawater coastline samples collected…”
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Molecular and biochemical evaluation of effects of malathion, phenanthrene and cadmium on Chironomus sancticaroli (Diptera: Chironomidae) larvae by Rebechi, Débora, Palacio-Cortés, Angela Maria, Richardi, Vinicius Sobrinho, Beltrão, Tiago, Vicentini, Maiara, Grassi, Marco Tadeu, da Silva, Simone Braga, Alessandre, Thiago, Hasenbein, Simone, Connon, Richard, Navarro-Silva, Mário Antônio

“…In-vitro effects of sub-lethal concentrations of malathion, phenanthrene (Phe) and cadmium (Cd) were tested on Chironomus sancticaroli larvae in acute…”
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Lichens as bio-monitors of polycyclic aromatic hydrocarbons: Measuring the impact of features and traffic patterns by Uribe, Diana Marcela, Ortega, Lina María, Grassi, Marco Tadeu, Dolatto, Rafael Garrett, Sánchez, Nazly Efredis

“…The role of road characteristics, including gradient and speed control devices, in influencing emission dynamics remains to be fully elucidated. Most studies…”
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Determination of polycyclic aromatic hydrocarbons extracted from lichens by gas chromatography–mass spectrometry by Ortega Fernández, Lina María, Uribe Ante, Diana Marcela, Grassi, Marco Tadeu, Dolatto, Rafael Garrett, Sánchez, Nazly Efredis

“…Lichens are well-known biomonitors for semi-volatile pollutants, due to their ability to absorb and retain different chemical compounds such as Polycyclic…”
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Salivary Changes in Patients Hospitalized for Complications of HIV Infection/AIDS: A Study Using Inductively Coupled Plasma Optical Emission Spectrometry by Cavassin Klamas, Vanessa, Anhaia Ventura, Mateus, Mara Baika, Loana, Arana Kamei, Adryano, Yukio Naka, Jhonatan, Lima Chaiben, Cassiano, Tadeu Grassi, Marco, Adilson Soares de Lima, Antonio

“…Objective: The aim of this study was to analyze the salivary flow and levels of major salivary ions of HIV-infected individuals. Methods: One hundred and two…”
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Distribution and origin of polycyclic aromatic hydrocarbons in surface sediments from an urban river basin at the Metropolitan Region of Curitiba,Brazil by Leite, Natalicio Ferreira, Peralta-Zamora, Patricio, Grassi, Marco Tadeu

“…The concentrations of 16 polycyclic aromatic hydrocarbons（PAHs） were determined in surface sediment samples from nine sites located at the Iguau River Basin…”
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Potentiality of Epoxy-Montmorillonite Composite for Stir-Bar Sorptive Extraction for Determination of Atrazine by Bohone, Juliane Boiko, Weber, Caroline, Silva, Bruno José Gonçalves da, Martins, Elisandra Carolina, Amaral, Bianca do, Grassi, Marco Tadeu, Zamora, Patricio Guillermo Peralta, Abate, Gilberto

“…Abstract A new low-cost material is presented for the first time, aiming to study the sorption process for the stir-bar sorptive extraction (SBSE) technique…”
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Multivariate optimization of mercury determination by flow injection-cold vapor generation-inductively coupled plasma optical emission spectrometry by dos Santos, Vanessa Cristina Gonçalves, Grassi, Marco Tadeu, de Campos, Mônica Soares, Peralta-Zamora, Patricio Guillermo, Abate, Gilberto

“…In this work a procedure for mercury determination by Flow Injection-Cold Vapor Generation-Inductively Coupled Plasma Optical Emission Spectrometry (FI-CVG-ICP…”
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Multifactorial optimization approach for the determination of polycyclic aromatic hydrocarbons in river sediments by gas chromatography–quadrupole ion trap selected ion storage mass spectrometry by Leite, Natalicio Ferreira, Peralta-Zamora, Patricio, Grassi, Marco Tadeu

“…A procedure for the determination of very low polycyclic aromatic hydrocarbons (PAHs) concentrations in sediment samples has been developed by gas…”
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Metals impact into the Paranaguá Estuarine Complex (Brazil) during the exceptional flood of 2011 by Rocha, Marilia Lopes da, Sa, Fabian, Campos, Monica Soares, Grassi, Marco Tadeu, Combi, Tatiane, Machado, Eunice da Costa

“…Abstract Particulate and dissolved metal concentrations were determined after the largest flood in the last 30 years on the east-west axis of the Paranaguá…”
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Análise de especiação de cobre e zinco empregando voltametria de redissolução anódica com pulso diferencial by Tonietto, Alessandra Emanuele, Grassi, Marco Tadeu

“…This work describes methodologies for speciation analysis of the metals copper and zinc as total, total dissolved, labile, as well as complexation capacity…”
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Chumbo e zinco em águas e sedimentos de área de mineração e metalurgia de metais by Melo, Vander de Freitas, Andrade, Maísa de, Batista, Araína Hulmann, Favaretto, Nerilde, Grassi, Marco Tadeu, Campos, Mônica Soares de

“…Lead metallurgy at Adrianópolis is the largest environmental problem of Paraná, Brazil. The objective of this study was to determine Pb and Zn levels in water…”
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Pré-concentração de Cr(III) e análise de especiação de cromo empregando montmorilonita saturada com íons potássio by Frois, Sérgio Ribeiro, Grassi, Marco Tadeu, Fernandes, Tatyane Caruso, Barreto, Ronaldo Adriano dos Santos, Abate, Gilberto

“…The clay mineral montmorillonite-K10 (MT), treated under acidic medium and saturated with potassium ions (MTK), was employed in sorption and desorption studies…”
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SUSTENTABILIDADE E QUÍMICA AMBIENTAL by C. Montagner, Cassiana, Machado, Giovanna, Grassi, Marco Tadeu

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Mechanochemical conversion of chrysotile/K2HPO4 mixtures into potential sustainable and environmentally friendly slow-release fertilizers by Borges, Roger, Baika, Loana Mara, Grassi, Marco Tadeu, Wypych, Fernando

“…Chrysotile fibers pose a threat to public health due to their association relation to respiratory malignant lung disease such as cancer. For this reason, they…”
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Cation Exchange Reactions in Layered Double Hydroxides Intercalated with Sulfate and Alkaline Cations (A(H2O)6)[M2+ 6Al3(OH)18(SO4)2]·6H2O (M2+ = Mn, Mg, Zn; A+ = Li, Na, K) by Sotiles, Anne Raquel, Baika, Loana Mara, Grassi, Marco Tadeu, Wypych, Fernando

“…Layered double hydroxides (LDHs) with similar compositions to the minerals shigaite, natroglaucocerinite, and motukoreaite were synthesized by co-precipitation…”
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