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121

Determinação espectrofotométrica do arsênio em cabelo usando o método do dietilditiocarbamato de prata (SDDC) e trietanolamina/CHCl3 como solvente

by PEREIRA, Simone de Fátima Pinheiro

Published 2002

Other Authors: “...FERREIRA, Sérgio Luis Costa...”
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122

Multivariate optimization of a solid phase microextraction-headspace procedure for the determination of benzene, toluene, ethylbenzene and xylenes in effluent samples from a waste...

by Gaujac, Alain

Published 2008

Other Authors: “...Ferreira, Sergio Luis Costa...”
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123

Statistical mixture design development of digestion methods for Oyster tissue using inductively coupled plasma optical emission spectrometry for the determination of metallic ions

by Nano, Rita M. W.

Published 2009

Other Authors: “...Ferreira, Sergio Luis Costa...”
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124

Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design

by Macedo, Samuel Marques

Published 2009

Other Authors: “...Ferreira, Sergio Luis Costa...”
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125

Direct determination of gallium in bauxite employing ICP OES using the reference element technique for interference elimination

by Santana, Fernanda Alves de

Published 2013

Other Authors: “...Ferreira, Sergio Luis Costa...”
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126

Spectrophotometric determination of arsenic in soil samples using 2-(5-bromo-2-pyridylazo)-5-di-ethylaminophenol (Br-PADAP)

by PEREIRA, Simone de Fátima Pinheiro

Published 2008

Other Authors: “...FERREIRA, Sérgio Luis Costa...”
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127

Uso de irradiação de microondas na determinação espectrofotométrica de cromo com EDTA

by Costa,Antônio Celso Spínola

Published 1999

Other Authors: “...Ferreira,Sérgio Luís Costa...”
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128

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

by Santos, João Victor da Silva

Published 2011

Other Authors: “...Ferreira, Sergio Luis Costa...”
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129

Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometry

by Santos, Denilson S. S. dos

Published 2007

Other Authors: “...Ferreira, Sergio Luis Costa...”
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130

Application of multivariate techniques for optimization of direct method for determination of lead in naphtha and petroleum condensate by electrothermal atomic absorption spectrome...

by Dias, Fábio de Souza

Published 2007

Other Authors: “...Ferreira, Sergio Luis Costa...”
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131

Automatic on-line pre-concentration system using a knotted reactor for the FAAS determination of lead in drinking water

by Souza, Anderson Santos

Published 2007

Other Authors: “...Ferreira, Sergio Luis Costa...”
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132

Application of multivariate technique in method development for the direct determination of copper in petroleum condensate using graphite furnace atomic absorption spectrometry

by Santos, Walter Nei Lopes dos

Published 2005

Other Authors: “...Ferreira, Sergio Luis Costa...”
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133

Fast method for the determination of copper, manganese and iron in seafood samples

by Silva, Erik Galvão Paranhos da

Published 2008

Other Authors: “...Ferreira, Sergio Luis Costa...”
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134

Mineral composition of wheat flour consumed in Brazilian cities

by Araujo, Rennan Geovanny Oliveira

Published 2008

Other Authors: “...Ferreira, Sergio Luis Costa...”
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135

Determination of mercury in phosphate fertilizers by cold vapor atomic absorption spectrometry

by Jesus, Robson M. de

Published 2013

Other Authors: “...Ferreira, Sergio Luis Costa...”
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136

Determination of the mineral composition of Brazilian rice and evaluation using chemometric techniques

by Silva, Douglas Gonçalves da

Published 2013

Other Authors: “...Ferreira, Sergio Luis Costa...”
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137

Use of multivariate analysis techniques for the characterization of analytical results for the determination of the mineral composition of kale

by Fadigas, Joelma C.

Published 2010

Other Authors: “...Ferreira, Sergio Luis Costa...”
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138

On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials

by Cassella, Ricardo Jorgensen

Published 1999

Other Authors: “...Ferreira, Sergio Luis Costa...”
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139

Optimization of the operating conditions using factorial designs for determination of uranium by inductively coupled plasma optical emission spectrometry

by Santos, Juracir S.

Published 2011

Other Authors: “...Ferreira, Sergio Luis Costa...”
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140

Application of multivariate optimization in the development of an ultrasound-assisted extraction procedure for multielemental determination in bean seeds samples using ICP OES

by Santos, Wagna Piler Carvalho

Published 2009

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