Search Results - "De Souza, João Batista Gomes"

A new voltammetric method for the simultaneous determination of the antioxidants TBHQ and BHA in biodiesel using multi-walled carbon nanotube screen-printed electrodes by Caramit, Ricardo Pini, de Freitas Andrade, Adriana Garabini, Gomes de Souza, João Batista, de Araujo, Tatiane Alfonso, Viana, Luiz Henrique, Trindade, Magno Aparecido Gonçalves, Ferreira, Valdir Souza

“…Cyclic voltammograms obtained on SPE–MWCNT surface for, (a) blank: BR buffer 0.04molL−1 (pH 2.0) containing 2.0% of methanol; (b) TBHQ 2.0×10−5molL−1; (c) BHA…”
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Comparative Study of Fatty Acid Composition in Crude Vegetable Oils from Species Cultivated in Mato Grosso do Sul, Brazil by Sanches, Erico Vinicius Rocha, Freire, Geovanna Vilalva, Santos, Simone Reis, Alcantara, Glaucia Braz, de Souza, Joao Batista Gomes

“…Soybean is the main oilseed cultivated in the Middle-west region of Brazil, once geoclimatic conditions favor its cultivation and underexplored species such as…”
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Fast and Selective Simultaneous Determination of Acetaminophen, Aspirin and Caffeine in Pharmaceutical Products by Batch Injection Analysis with Multiple Pulse Amperometric Detection by Machado Alencar, Letícia, Backes dos Santos, Rafael, de Jesus Guedes, Tiago, Torres Pio dos Santos, Wallans, Batista Gomes de Souza, João, Souza Ferreira, Valdir, Amorim Bezerra da Silva, Rodrigo

“…In this work is presented a method for simultaneous determination of paracetamol (PA), acetylsalicylic acid (ASA) and caffeine (CA) in pharmaceutical tablets,…”
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Polycyclic Aromatic Hydrocarbon Concentrations in Gas and Particle Phases and Source Determination in Atmospheric Samples from a Semiurban Area of Dourados, Brazil by Ré, Nilva, Kataoka, Vanessa Mayumi Fukuy, Cardoso, Claudia Andrea Lima, Alcantara, Glaucia Braz, de Souza, João Batista Gomes

“…A headspace solid-phase microextraction (HS-SPME) procedure that employs a PDMS/DVB fiber was developed for the analysis of gas-phase polycyclic aromatic…”
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Determination of polycyclic aromatic hydrocarbons by gas chromatography — ion trap tandem mass spectrometry and source identifications by methods of diagnostic ratio in the ambient air of Campo Grande, Brazil by Ströher, Gisely Luzia, Poppi, Nilva Ré, Raposo, Jorge Luiz, Gomes de Souza, João Batista

“…Polycyclic aromatic hydrocarbons (PAHs) were measured in samples collected from July to December of 2003, in Campo Grande — MS (Brazil), on three different…”
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Otimizacao de Diferentes Procedimentos de Preparo de Amostras: Aplicacao na Extracao de Antioxidantes Presentes em Biodiesel by Andrade, Adriana Garabini de Freitas, Caramit, Ricardo Pini, de Araujo, Tatiane Alfonso, Viana, Luiz Henrique, de Souza, Joao Batista Gomes, Trindade, Magno A. Goncalves, Ferreira, Valdir Souza

“…In this work, different procedures were compared for the extraction of synthetic antioxidants such as propyl gallate (PG), tert-Butylhydroquinone (TBHQ),…”
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Desenvolvimento e validação de método analítico por CLAE para determinação simultânea de atorvastatina, losartana e metformina em formulações farmacêuticas magistrais by Mirella Carla Galana Gerlin, Teófilo Fernando Mazon Cardoso, João Batista Gomes de Souza, Adriano Cesar de Moraes Baroni, Marcos Serrou do Amaral, Kassab, Najla

“…Objetivos: Desenvolver e validar um método analítico para a análise simultânea de atorvastatina (ATO), losartana (LOS) e metformina (MTF) em formulações…”
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Otimização de Diferentes Procedimentos de Preparo de Amostras: Aplicação na Extração de Antioxidantes Presentes em Biodiesel by Adriana Garabini de Freitas Andrade, Ricardo Pini Caramit, Tatiane Alfonso de Araújo, Luiz Henrique Viana, João Batista Gomes de Souza, Magno A. G. Trindade, Valdir Souza Ferreira

“…In this work, different procedures were compared for the extraction of synthetic antioxidants such as propyl gallate (PG), tert-Butylhydroquinone (TBHQ),…”
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Estrógenos em água: otimização da extração em fase sólida utilizando ferramentas quimiométricas by Girotto Júnior, Gildo, Nogueira, Kellrye Leite, De Moura, José Antonio, De Souza, João Batista Gomes, Lopes, Laudicéia Giacometti, De Marchi, Mary Rosa Rodrigues, Tognolli, João Olímpio

“…Muitos métodos analíticos estão sendo desenvolvidos visando à determinação decontaminantes orgânicos, especialmente alteradores endócrinos. Tais métodos…”
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Otimização de Diferentes Procedimentos de Preparo de Amostras: Aplicação na Extração de Antioxidantes Presentes em Biodiesel by Andrade, Adriana Garabini de Freitas, Caramit, Ricardo Pini, De Araújo, Tatiane Alfonso, Viana, Luiz Henrique, De Souza, João Batista Gomes, Trindade, Magno A. G., Ferreira, Valdir Souza

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