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Prof. Leonardo Luiz Okumura
Prof. Leonardo Luiz Okumura
Professor de Química Analítica, Universidade Federal de Viçosa
E-mail confirmado em ufv.br - Página inicial
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Simultaneous determination of zinc, copper, lead, and cadmium in fuel ethanol by anodic stripping voltammetry using a glassy carbon–mercury-film electrode
MF De Oliveira, AA Saczk, LL Okumura, AP Fernandes, M De Moraes, ...
Analytical and bioanalytical chemistry 380, 135-140, 2004
1452004
Voltammetric determination of Δ9-THC in glassy carbon electrode: An important contribution to forensic electroanalysis
MA Balbino, MMT de Menezes, IC Eleoterio, AA Saczk, LL Okumura, ...
Forensic science international 221 (1-3), 29-32, 2012
562012
Cathodic stripping voltammetric determination of arsenic in sugarcane brandy at a modified carbon nanotube paste electrode
MC Teixeira, E de FL Tavares, AA Saczk, LL Okumura, ...
Food chemistry 154, 38-43, 2014
532014
Analytical methods employed at quality control of fuel ethanol
MF de Oliveira, AA Saczk, LL Okumura, NR Stradiotto
Energy & fuels 23 (10), 4852-4859, 2009
482009
Determination of aldehydes and ketones in fuel ethanol by high-performance liquid chromatography with electrochemical detection
AA Saczk, LL Okumura, MF Oliveira, MVB Zanoni, NR Stradiotto
Chromatographia 63 (1), 45-51, 2006
352006
Determinação de zinco em álcool combustível opr voltametria de redissolução anódica
MF Oliveira, AA Saczk, LL Okumura, NR Stradiotto
Eclética Química 27, 153-160, 2002
322002
Análise do teor de cocaína em amostras apreendidas pela polícia utilizando-se a técnica de cromatografia liquida de alta eficiência com detector UV-Vis
MF Oliveira, JQ Alves, JF Andrade, AA Saczk, LL Okumura
Eclética Química 34, 77-83, 2009
222009
Modifying Glassy Carbon (GC) Electrodes to Confer Selectivity for the Voltammetric Detection of L‐Cysteine in the Presence of dl‐Homocysteine and Glutathione
LL Okumura, NR Stradiotto, NV Rees, RG Compton
Electroanalysis: An International Journal Devoted to Fundamental and …, 2008
222008
Simultaneous determination of neutral nitrogen compounds in gasoline and diesel by differential pulse voltammetry
LL Okumura, NR Stradiotto
Talanta 72 (3), 1106-1113, 2007
222007
Simultaneous determination of quinoline and pyridine compounds in gasoline and diesel by differential pulse voltammetry
LL Okumura, NR Stradiotto
Electroanalysis: An International Journal Devoted to Fundamental and …, 2007
222007
Electrochemical feasibility study of methyl parathion determination on graphite-modified basal plane pyrolytic graphite electrode
LL Okumura, AA Saczk, MF Oliveira, ACC Fulgêncio, L Torrezani, ...
Journal of the Brazilian Chemical Society 22, 652-659, 2011
202011
Voltammetric determination of phosphate in Brazilian biodiesel using two different electrodes
L Torrezani, AA Saczk, M Firmino de Oliveira, NR Stradiotto, LL Okumura
Electroanalysis 23 (10), 2456-2461, 2011
192011
Quantitative assay of copper, iron, nickel, and zinc in fuel ethanol samples by flame atomic absorption spectrometry
A Saczk, LL Okumura, NR Stradiotto
Chemistry and technology of fuels and oils 44 (6), 2008
192008
An alternative method for the simultaneous determination of copper and lead for quality control of sugar cane spirit using a nanotube-based sensor
EFL Tavares, LL Okumura, MG Cardoso, MF Oliveira, ZM Magriotis, ...
Journal of the Brazilian Chemical Society 23, 1614-1622, 2012
172012
Multiwalled carbon nanotube/ionic liquid paste electrode for voltammetric determination of sulfachlorpyridazine
H Aleixo, LL Okumura, A Gurgel, AFS Silva, JA Diniz
Analytical methods 11 (13), 1743-1750, 2019
152019
Voltammetric behavior of 2-furfuraldehide reduction in ethanol using glassy carbon electrode
AA Saczk, MF de Oliveira, LL Okumura, NR Stradiotto
Eclética Química Journal 27 (2), 2002
142002
New voltammetry-based technique for the determination of tebuthiuron in crystal and brown sugar samples
AP Assis, LL Okumura, AA Saczk, MF Oliveira
Journal of the Brazilian Chemical Society 25, 27-35, 2014
122014
Voltammetric determination of organic nitrogen compounds in environmental samples using carbon paste electrode modified with activated carbon
MC Teixeira, FS Felix, SS Thomasi, ZM Magriotis, JM da Silva, ...
Microchemical Journal 148, 66-72, 2019
112019
Electroanalysis and determination of acetaldehyde in fuel ethanol using the reaction with 2, 4-dinitrophenylhydrazine
VS Rodgher, LL Okumura, AA Saczk, NR Stradiotto, MVB Zanoni
Journal of Analytical Chemistry 61, 889-895, 2006
112006
Determination of acetaldehyde in fuel ethanol by high-performance liquid chromatography with electrochemical detection
AA Saczk, LL Okumura, MF De Oliveira, MVB Zanoni, NR Stradiotto
Analytical sciences 21 (4), 441-444, 2005
112005
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