1. Universidade Federal da Bahia

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2010Optimization of fluorine determination via the molecular absorption of gallium mono-fluoride in a graphite furnace using a high-resolution continuum source spectrometerGleisner, Heike; Welz, Bernhard; Einax, Jürgen W.Artigo de Periódico
2013Effect of magnesium acetylacetonate on the signal of organic forms of vanadium in graphite furnace atomic absorption spectrometryKowalewska, Zofia; Welz, Bernhard; Castilho, Ivan N. B.; Carasek, EduardoArtigo de Periódico
2010Determination of heavy metals in activated charcoals and carbon black for Lyocell fiber production using direct solid sampling high-resolution continuum source graphite furnace atomic absorption and inductively coupled plasma optical emission spectrometryLepri, Fábio G.; Borges, Daniel L. G.; Araujo, Rennan Geovanny Oliveira; Welz, Bernhard; Wendler, Frank; Krieg, Marcus; Becker-Ross, HelmutArtigo de Periódico
2008Single drop micro-extraction with O,O-diethyl dithiophosphate for the determination of lead by electrothermal atomic absorption spectrometryMaltez, Heloísa França; Borges, Daniel L. G.; Carasek, Eduardo; Welz, Bernhard; Curtius, Adilson JoséArtigo 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
2013Determination of sulfur in coal using direct solid sampling and high-resolution continuum source molecular absorption spectrometry of the CS molecule in a graphite furnaceMior, Renata; Morés, Silvane; Welz, Bernhard; Carasek, Eduardo; Andrade, Jailson Bittencourt deArtigo 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
2007Method development for the determination of manganese, cobalt and copper in green coffee comparing direct solid sampling electrothermal atomic absorption spectrometry and inductively coupled plasma optical emission spectrometryOleszczuk, Nédio; Castro, Jacira T.; Silva, Márcia M. da; Korn, Maria das Graças Andrade; Welz, Bernhard; Vale, Maria Goreti R.Artigo de Periódico
2014Strontium mono-chloride — A new molecule for the determination of chlorine using high-resolution graphite furnace molecular absorption spectrometry and direct solid sample analysisPereira, Éderson R.; Welz, Bernhard; Lopez, Alfredo H. D.; Gois, Jefferson S. de; Caramori, Giovanni Finoto; Borges, Daniel L. G.; Carasek, Eduardo; Andrade, Jailson Bittencourt deArtigo de Periódico
2007Determination of lead in sediments and sewage sludge by on-line hydride-generation axial-view inductively-coupled plasma optical-emission spectrometry using slurry samplingSantos, Eder José dos; Herrmann, Amanda Beatriz; Frescura, Vera Lúcia Azzolin; Welz, Bernhard; Curtius, Adilson JoséArtigo de Periódico
2009Simultaneous Determination of Cd and Fe in Beans and Soil of Different Regions of Brazil Using High-Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry and Direct Solid SamplingSantos, Lisia Maria Gobbo dos; Welz, Bernhard; Araujo, Rennan Geovanny Oliveira; Jacob, Silvana do C.; Vale, Maria Goreti R.; Martens, Andreas; Martens, Irland B. Gonzaga; Ross, Helmut BeckerArtigo de Periódico
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
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
2008Determination of volatile and non-volatile nickel and vanadium compounds in crude oil using electrothermal atomic absorption spectrometry after oil fractionation into saturates, aromatics, resins and asphaltenesVale, Maria Goreti R.; Silva, Márcia M.; Damin, Isabel Cristina Ferreira; Sanches Filho, Pedro J.; Welz, BernhardArtigo 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
2011Method development and optimization for the determination of selenium in bean and soil samples using hydride generation electrothermal atomic absorption spectrometryWelz, Bernhard; Shaltout, Abdallah A.; Castilho, Ivan N. B.; Carasek, Eduardo; Gonzaga Martens, Irland B.; Martens, Andreas; Cozzolino, Silvia M.F.Artigo de Periódico
2007Progress in direct solid sampling analysis using line source and high-resolution continuum source electrothermal atomic absorption spectrometryWelz, Bernhard; Vale, Maria Goreti R.; Borges, Daniel L. G.; Heitmann, UweArtigo de Periódico
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