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81

Determination of lead in aluminum and magnesium antacids using electrothermal atomic absorption spectrometry

by Portugal, Lindomar Andrade

Published 2011

Other Authors: “...Ferreira, Sergio Luis Costa...”
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82

Factorial and Doehlert designs in the optimization of a separation procedure using polyurethane foam as a solid phase extractant for platinum determination in ferrous matrices usin...

by Araújo, Neyla Margarida Lopo de

Published 2012

Other Authors: “...Ferreira, Sergio Luis Costa...”
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83

Selenite biotransformation during brewing. Evaluation by HPLC–ICP-MS

by Martínez, Maria Sánchez

Published 2012

Other Authors: “...Ferreira, Sergio Luis Costa...”
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84

Determination of zinc and copper in human hair by slurry sampling employing sequential multi-element flame atomic absorption spectrometry

by Ferreira, Hadla S.

Published 2007

Other Authors: “...Ferreira, Sergio Luis Costa...”
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85

Simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry

by Portugal, Lindomar Andrade

Published 2007

Other Authors: “...Ferreira, Sergio Luis Costa...”
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86

On-line system for preconcentration and determination of metals in vegetables by Inductively Coupled Plasma Optical Emission Spectrometry

by Bezerra, Marcos de Almeida

Published 2007

Other Authors: “...Ferreira, Sergio Luis Costa...”
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87

Multivariate optimization of a procedure employing microwave-assisted digestion for the determination of nickel and vanadium in crude oil by ICP OES.

by Anjos, Shirlei

Published 2018

Other Authors: “...Ferreira, Sergio Luis Costa...”
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88

Multivariate technique for optimization of digestion procedure by focussed microwave system for determination of Mn, Zn and Fe in food samples using FAAS

by Bezerra, Marcos de Almeida

Published 2006

Other Authors: “...Ferreira, Sergio Luis Costa...”
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89

Method development for the determination of manganese in wheat flour by slurry sampling flame atomic absorption spectrometry

by Araujo, Rennan Geovanny Oliveira

Published 2005

Other Authors: “...Ferreira, Sergio Luis Costa...”
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90

Methods for vanadium determination in fuel oil by GF AAS with microemulsification and acid digestion sampling

by Amorim, Fábio Alan Carqueija

Published 2007

Other Authors: “...Ferreira, Sergio Luis Costa...”
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91

Use of factorial design for optimization of microwave-assisted digestion of lubricating oil

by Costa, Letícia M.

Published 2005

Other Authors: “...Ferreira, Sergio Luis Costa...”
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92

The use of water soluble tertiary amine reagent for solubilization and metal determination in fish muscle tissue

by Melo, Maria H. A.

Published 2005

Other Authors: “...Ferreira, Sergio Luis Costa...”
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93

Spectrophotometric determination of chromium in steel with 4-(2- thiazolylazo)-resorcinol (TAR) using microwave radiation

by Carvalho, Luciene Santos de

Published 2004

Other Authors: “...Ferreira, Sergio Luis Costa...”
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94

Simultaneous spectrophotometric determination of nickel and iron in copper-base alloy with bromo—PADAP

by Costa, Antonio Celso Spinola

Published 1993

Other Authors: “...Ferreira, Sergio Luis Costa...”
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95

Adsorptive preconcentration for voltammetric measurements of trace levels of vanadium in the presence of copper

by Farias, Pércio Augusto Mardini

Published 1993

Other Authors: “...Ferreira, Sergio Luis Costa...”
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96

Adsorptive stripping voltammetric behaviour of copper complexes of some heterocyclic azo compounds

by Farias, Pércio Augusto Mardini

Published 1992

Other Authors: “...Ferreira, Sergio Luis Costa...”
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97

Determination of mercury in rice by MSFIA and cold vapour atomic fluorescence spectrometry

by Silva, Douglas Gonçalves da

Published 2013

Other Authors: “...Ferreira, Sergio Luis Costa...”
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98

Multivariate optimisation of the experimental conditions for determination of three methylxanthines by reversed-phase high-performance liquid chromatography

by Bispo, Márcia Sousa

Published 2005

Other Authors: “...Ferreira, Sergio Luis Costa...”
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99

A photo-oxidation procedure using UV radiation/H2O2 for decomposition of wine samples: determination of iron and manganese content by flame atomic absorption spectrometry

by Santos, Walter Nei Lopes dos

Published 2009

Other Authors: “...Ferreira, Sergio Luis Costa...”
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100

Pressure-driven mesofluidic platform integrating automated on-chip renewable micro-solid-phase extraction for ultrasensitive determination of waterborne inorganic mercury

by Portugal, Lindomar Andrade

Published 2013

Other Authors: “...Ferreira, Sergio Luis Costa...”
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