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Potentialities of hydride generation atomic absorption spectrometry (HGAAS) in the fast sequential determination of AS, BI and SB. Author(s): CARAPELLI, R.; GUERRA, M. B. B.; MIRANDA, K. dos A. de; PEREIRA FILHO, E. R.; NOGUEIRA, A. R. de A. In this study, a sensitive hydride generation method was combined with fast sequential flame atomic absorption spectrometry (FS-FAAS) for the sequential determination of As, Bi and Sb in water samples... ... Repository: BDPA Publication year: 2010
Acid digestion for cadmium determination in mineral salt mixing for animal nutrition by thermospra y flame furnace Atomic absorption spectrometry. Author(s): GUERRA, M. B. B.; NOGUEIRA, A. R. de A.; SILVA, P. H. T.; PEREIRA FILHO, E. R. Cadmium was determined in a sample of mineral salt mixing to milk cattle that has been preparing to be a reference material. A volume of 3 mL of HNO3 3.0 mol L-1 plus 2.0 of H202 30% (W w-1) was added... ... Repository: BDPA Publication year: 2010
Zinc fractionation in cow, goat, sheep and soybean milk samples using gel-electrophoresis and determination by electrothermal atomic absorption spectrometry (ETAAS). Author(s): BOSSU, C. M.; GIGLIOTI, R.; OLIVEIRA, M. C. de S.; OLIVEIRA, P. V. DE; NOGUEIRA, A. R. de A. A screening method for zinc levels in different milk samples (raw cow, raw sheep, UHT cow, UHT goat and soybean milk base) was performed to establish the Zn levels' differences in protein samples. The... ... Repository: BDPA Publication year: 2021
Development of methods for the determination of cadmium and thallium in oil shale by-products with graphite furnace atomic absorption spectrometry using direct analysis. Author(s): OLIVEIRA, H. R.; MESKO, M. F.; VALE, M. G. R.; SILVEIRA, C. A. P.; PICOLOTO, R. S.; BECKER, E. M. Repository: BDPA Publication year: 2014
Feasibility of Using AAS for the Characterization of a Tuna Fish Candidate Reference Material for Total Hg and Methyl-Hg Measurement. Author(s): CHELEGAO, R.; CARIONI, V. M. O.; NAOZUKA, J.; NOMURA, C. S. This work describes the evaluation of several parameters for preparing a tuna fish candidate reference material (RM) in order to measure its total Hg and methyl-Hg mass fractions by cold vapor atomic... ... Repository: BDPA Publication year: 2016
Selenium determination in tissue samples of Nile tilapia using ultrasound-assisted extraction. Author(s): SILVA, F. A.; PADILHA, C. C. F.; CASTRO, G. R. de; ROLDAN, P. dos S.; NOGUEIRA, A. R. de A.; MORAES, P. M.; PADILHA, P. M. This paper proposes a method to determine selenium in samples of fish muscle and liver tissue using ultrasound assisted extraction process, and analysed by graphite furnace atomic absorption spectrome... ... Repository: BDPA Publication year: 2011
Chromium speciation in organic fertilizer by cloud point extraction and optimization through experimental Doehlert design as support for legislative aspects. Author(s): SÁ, I. P. de; SOUZA, G. B. de; NOGUEIRA, A. R. de A. Brazilian and EU legislation establishes 2 mg kg?1 as the maximum limit of Cr(VI) in organic fertilizers. A procedure involving chromium speciation was developed. With this approach, the interference... ... Repository: BDPA Publication year: 2021
Two beta-xylanases from Aspergillus terreus: characterization and influence of phenolic compounds on xylanase activity. Author(s): MOREIRA, L. R. de S.; CAMPOS, M. de C.; SIQUEIRA, P. H. V. M. de; SILVA, L. P. da; RICART, C. A. O.; MARTINS, P. A.; QUEIROZ, R. M. L.; FERREIRA FILHO, E. X. Repository: BDPA Publication year: 2013
Uncovering the formation of color gradients on microfluidic paper-based analytical devices by mass spectrometry imaging. Author(s): FREITAS, S. V. de; SOUZA, F. R. de; NETO, J. C. R; VASCONCELOS, G. A.; ABDELNUR, P. V.; VAZ, B. G.; HENRY, C. S.; COLTRO, W. K. T. Repository: BDPA Publication year: 2018
Atomic force microscopy as a tool applied to nano/biosensors. Author(s): STEFFENS, C.; LEITE, F. L.; BUENO, C. C.; MANZOLI, A.; HERRMANN JUNIOR, P. S. de P. Repository: BDPA Publication year: 2012

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