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Data do documentoTítuloAutor(es)Tipo
2005Application of multivariate technique in method development for the direct determination of copper in petroleum condensate using graphite furnace atomic absorption spectrometrySantos, Walter Nei Lopes dos; Dias, Fábio de Souza; Fernandes, M. S.; Rebouças, Márcio das Virgens; Vale, Maria Goreti Rodrigues; Welz, Bernhard; Ferreira, Sergio Luis CostaArtigo de Periódico
2010Unusual calibration curves observed for iron using high-resolution continuum source graphite furnace atomic absorption spectrometryWelz, Bernhard; Santos, Lisia Maria Gobbo dos; Araujo, Rennan Geovanny Oliveira; Jacob, Silvana do C.; Vale, Maria Goreti R.; Okruss, Michael; Ross, Helmut BeckerArtigo de Periódico
2008Comparison of direct solid sampling and slurry sampling for the determination of cadmium in wheat flour by electrothermal atomic absorption spectrometryAraujo, Rennan Geovanny Oliveira; Oleszczuk, Nédio; Rampazzo, Roger T.; Costa, Pedro A.; Silva, Márcia M.; Vale, Maria Goreti R.; Welz, Bernhard; Ferreira, Sergio Luis CostaArtigo de Periódico
2008Investigation of artifacts caused by deuterium background correction in the determination of phosphorus by electrothermal atomization using high-resolution continuum source atomic absorption spectrometryDessuy, Morgana B.; Vale, Maria Goreti R.; Lepri, Fábio G.; Borges, Daniel L. G.; Welz, Bernhard; Silva, Márcia M.; Heitmann, UweArtigo de Periódico
2011Determination of fluorine in tea using highresolution molecular absorption spectrometry with electrothermal vaporization of the calcium monofluoride CaFMorés, Silvane; Monteiro, Gustavo C.; Santos, Flaviane da Silva; Carasek, Eduardo; Welz, BernhardArtigo de Periódico
2007Cloud point extraction for the determination of lead and cadmium in urine by graphite furnace atomic absorption spectrometry with multivariate optimization using Box–Behnken designMaranhão, Tatiane de A.; Martendal, Edmar; Borges, Daniel L. G.; Carasek, Eduardo; Welz, Bernhard; Curtius, Adilson JoséArtigo de Periódico
2007Application of multivariate techniques for optimization of direct method for determination of lead in naphtha and petroleum condensate by electrothermal atomic absorption spectrometryDias, Fábio de Souza; Santos, Walter Nei Lopes dos; Costa, Antonio Celso Spinola; Welz, Bernhard; Vale, Maria Goreti R.; Ferreira, Sergio Luis CostaArtigo de Periódico
2013Determination of silver in airborne particulate matter collected on glass fiber filters using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid samplingAraujo, Rennan Geovanny Oliveira; Vignola, Fabíola; Castilho, Ivan N. B.; Welz, Bernhard; Vale, Maria Goreti R.; Smichowski, Patricia; Ferreira, Sergio Luis Costa; Becker-Ross, HelmutArtigo de Periódico
2013Determinations of Sb and Mo in Cairo's dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysisShaltout, Abdallah A.; Welz, Bernhard; Castilho, Ivan N. B.Artigo de Periódico
2011Hydride generation in-atomizer collection atomic absorption spectrometry for the determination of antimony in acetic acid leachates from pewter cupsVale, Maria Goreti R.; Dessuy, Morgana B.; Kratzer, Jan; Welz, Bernhard; Dědina, JiříArtigo de Periódico