Indirect determination of chloride and sulfate ions in ethanol fuel by X-ray fluorescence after a precipitation procedure by Teixeira, Leonardo S.G., Chaves, Thaise J., Guimarães, Paulo R.B., Pontes, Luiz A.M., Teixeira, Josanaide S.R.

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Comparison between conventional and ultrasonic preparation of beef tallow biodiesel by Teixeira, Leonardo S.G., Assis, Júlio C.R., Mendonça, Daniel R., Santos, Iran T.V., Guimarães, Paulo R.B., Pontes, Luiz A.M., Teixeira, Josanaide S.R.

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Using the Doehlert matrix as a tool for studying the influence of gasoline components on octane numbers by Assis, Júlio C.R., Teixeira, Josanaide S.R., Pontes, Luiz A.M., Guimarães, Paulo R.B., Vianna, Regina F., Bezerra, Marcos A., Teixeira, Leonardo S.G.

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Characterization of beef tallow biodiesel and their mixtures with soybean biodiesel and mineral diesel fuel by Teixeira, Leonardo S.G., Couto, Marcelo B., Souza, Giancarlos S., Filho, Miguel Andrade, Assis, Júlio C.R., Guimarães, Paulo R.B., Pontes, Luiz A.M., Almeida, Selmo Q., Teixeira, Josanaide S.R.

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Multi-element determination of copper, iron, nickel, manganese, lead and zinc in environmental water samples by ICP OES after solid phase extraction with a C18 cartridge loaded wit... by Carvalho, Roberta N. C. S, Brito, Geysa B, Korn, Maria G. A, Teixeira, Josanaide S. R, Dias, Fábio de S, Dantas, Alailson F, Teixeira, Leonardo S. G

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Simultaneous determination of copper and iron in automotive gasoline by X-ray fluorescence after pre-concentration on cellulose paper by Teixeira, Leonardo S.G., Rocha, Rodrigo B.S., Sobrinho, Eledir V., Guimarães, Paulo R.B., Pontes, Luiz A.M., Teixeira, Josanaide S.R.

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DETERMINAÇÃO MULTIELEMENTAR EM AMOSTRAS DE BIODIESEL EMPREGANDO ESPECTROMETRIA DE FLUORESCÊNCIA DE RAIOS-X POR DISPERSÃO DE ENERGIA APÓS EXTRAÇÃO INDUZIDA POR QUEBRA DE EMULSÃO... by Almeida, Jorge, Domingos, Stênio, Meira, Lucilia, Teixeira, Josanaide, Teixeira, Leonardo

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Determination of ethanol in biodiesel samples using mercaptopropionic acid-capped cadmium telluride quantum dots as photoluminescence probes by Silva, Elane M., Tarantino, Taiana B., Almeida, Jorge S., Teixeira, Josanaide S.R., Santana, Rodolfo M.M., Korn, Maria Graças A., Teixeira, Leonardo S.G.

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Polyprenylated benzophenones with a tricyclo [4.3.1.1(3,8)]undecane skeleton from Clusia obdeltifolia by Cruz, Frederico G., Teixeira, Josanaide S. R.

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A new biphenyl from Clusia melchiorii and a new tocotrienol from C. obdeltifolia by Teixeira, Josanaide S. R., Moreira, Luciana de M., Guedes, Maria L. da S., Cruz, Frederico G.

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