A study of the aerobic reaction between dopamine and Fe(III) in the presence of S2O3 2 von Barreto, Wagner José, Barreto, Sonia Regina Giancoli, Silva, Waleria Pickina

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Study on the Historical Distribution of Metals in Aquatic Sediments von Barreto, Wagner José, Ishikawa, Dílson Norio, Nicolau, Andressa Clara, Magalhães, Evandro Domingues, Inoue, Fabiana, Nora, Paulo dos Santos, Funfas, Rodolfo, Barreto, Sônia Regina Giancoli

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Determination of Partition Coefficients of Metals in Natural Tropical Water von Barreto, Sonia Regina Giancoli, Barreto, Wagner José, Deduch, Elisangela Manjurma

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DETERMINATION OF NI(II) IN ALLOYS USING A NEW REAGENT DERIVED FROM L-DOPA von Barreto, Wagner José, Magosso, Herica Aparecida, Soares, Miriam Fátima, Oliveira Silveira, Bruno Marco, Spacino Scarminio, Ieda, Norio Ishikawa, Dílson, Giancoli Barreto, Sônia Regina

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Determination of Ni(II) in metal alloys by spectrophotometry UV-Vis using dopasemiquinone von Barreto, Wagner José, Barreto, Sonia Regina Giancoli, Scarminio, Ieda Spacino, Ishikawa, Dílson Norio, Soares, Miriam de Fátima, Proença, Marcus Vinícius Brás de

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Analysis of Physical and Chemical Parameters for Discrimination of Water Origin in a Hydroelectric Reservoir von Barreto, Wagner José, Scarminio, Ieda, Solci, Maria Cristina, Ishikawa, Dílson Norio, Tiemi Ogasawara, Melissa, Nomi, Sônia Naomi, Giancoli Barreto, Sônia Regina

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Iron oxide and pyrocatechol: a spectroscopy study of the reaction products von Barreto, Wagner José, Barreto, Sônia Regina Giancoli, Moreira, Ivanira, Kawano, Yoshio

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Fe, Mn, P and S Speciation in Sediments from the Capivara Hydroelectric Dam Lake (Brazil) as an Indicator of Anthropogenic Influences von Barreto, Wagner José, Ishikawa, Dilson Norio, Spacino Scarminio, Ieda, de Souza Costa, João, dos Santos Nora, Paulo, de Fatima Soares, Miriam, Mansano Nicolau, Romilaine, Esteves Gonçalves, Adriana Celeste, Giancoli Barreto, Sonia Regina

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Formação inicial de professores de química: a utilização dos relatórios de observação de aulas como instrumentos de pesquisa von Broietti, Fabiele Cristiane Dias, Barreto, Sonia Regina Giancoli

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Extração/pré-concentração de íons cobre no ponto nuvem explorando a formação de complexos com DMIT [4,5-dimercapto-1,3-ditiol-2-tionato] von Somera, Bruna Fabrin, Oliveira, Fernanda Midori de, Barreto, Wagner José, Barreto, Sônia Regina Giancoli, Tarley, César Ricardo Teixeira

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Evaluation of DMIT [4,5-Dimercapto-1,3-Dithyol-2-Thionate] as chelating agent in a cloud point extraction procedure for Pb2+ determination in water samples von Godoy, Naiara Vieira, Somera, Bruna Fabrin, Barreto, Wagner José, Barreto, Sônia Giancoli, Tarley, Cesar Ricardo Teixeira

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A study of the aerobic reaction between dopamine and Fe(III) in the presence of S2O32 von Barreto, Wagner José, Barreto, Sonia Regina Giancoli, Silva, Waleria Pickina

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Evaluation of DMIT [4,5-Dimercapto-1,3-Dithyol-2-Thionate] as chelating agent in a cloud point extraction procedure for [Pb.sup.2+] determination in water samples/Avaliacao do DMIT... von Godoy, Naiara Vieira, Somera, Bruna Fabrin, Barreto, Wagner Jose, Barreto, Sonia Regina Giancoli, Tarley, Cesar Ricardo Teixeira

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Initial formation of teachers of chemistry: the use of the reports of observation of classes as instruments of research von Fabiele Cristiane Dias Broietti, Sonia Regina Giancoli Barreto

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Avaliação do risco ambiental em sedimento dos lagos do Riacho Cambé, em Londrina, pela distribuição de metais Avaliation of the environmental risk by metal distribution in sediment... von Dílson Norio Ishikawa, Renata Zacarias Noale, Thiago Hideyuki Kobe Ohe, Eloana Benassi Ribeiro de Souza, Ieda Spacino Scarmínio, Wagner José Barreto, Sônia Regina Giancoli Barreto

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Avaliação do risco ambiental em sedimento dos lagos do Riacho Cambé, em Londrina, pela distribuição de metais von Ishikawa, Dílson Norio, Noale, Renata Zacarias, Ohe, Thiago Hideyuki Kobe, Souza, Eloana Benassi Ribeiro de, Scarmínio, Ieda Spacino, Barreto, Wagner José, Barreto, Sônia Regina Giancoli

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Origin of Dissolved Organic Carbon Studied by UV-vis Spectroscopy von Giancoli Barreto, Sônia Regina, Nozaki, Jorge, Barreto, Wagner J.

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