Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Osmundo D. Pessoa Neto"'
Autor:
Osmundo D. Pessoa Neto, Amália G. G. Dionísio, Edenir Rodrigues Pereira-Filho, Kelber Miranda, Marcos da Silva Gomes
Publikováno v:
Microchemical Journal. 100:27-30
In this study, the concentrations of Cd in smoke condensate of Paraguayan and Brazilian full flavor normal size cigarettes were determined. A “fishtail” chimney was used to confine and direct cigarette smoke to an impaction trap followed by 3 MCE
Autor:
Everaldo Paulo de Medeiros, Osmundo D. Pessoa Neto, Mauro Korn, Mario C U Araúo, Josué Carinhanha Caldas Santos, Suzana L Castro, Ricardo Chaves Lima, Valdomiro Lacerda Martins, Sérgio R. B. Santos
Publikováno v:
Journal of AOAC INTERNATIONAL. 88:1064-1068
A flow-injection biamperometric method for determination of pantoprazole (PTZ) in pharmaceutical tablets is reported for the first time. The reversible redox couples Fe3+/Fe2+, Fe(CN)63−/Fe(CN)64−, Ce4+/Ce3+, VO3−/VO2+, and I2/I− were tested
Autor:
Roberto Kawakami Harrop Galvão, Teresa Cristina Bezerra Saldanha, Márcio José Coelho Pontes, Gledson Emidio José, Mário César Ugulino de Araújo, Osmundo D. Pessoa Neto, Pablo N.T. Moreira
Publikováno v:
Chemometrics and Intelligent Laboratory Systems. 78:11-18
The Successive Projections Algorithm (SPA) has been shown to be a useful tool for variable selection in the framework of multivariate calibration. In this paper, the collinearity minimization role of SPA is exploited in the context of classification
Autor:
Osmundo D. Pessoa Neto, Edvaldo N. Gaião, Valdomiro Lacerda Martins, Margarida Carmo de Souza, Luciano F. Almeida, Mário César Ugulino de Araújo
Publikováno v:
Talanta. 82(3)
An automatic method for kinetics independent spectrometric analysis is proposed in this study. It uses a non-linear calibration model that explores concentration gradients generated by a flow-batch analyser (FBA) for the samples, dye, and the single
Autor:
Suzana L, Castro, Osmundo D Pessoa, Neto, Sergio R B, Santos, Everaldo P, Medeiros, Ricardo A C, Lima, Valdomiro L, Martins, Mario C U, Araújo, C C Santos, Josué, Mauro, Korn
Publikováno v:
Journal of AOAC International. 88(4)
A flow-injection biamperometric method for determination of pantoprazole (PTZ) in pharmaceutical tablets is reported for the first time. The reversible redox couples Fe3+/Fe2+, Fe(CN)6(3-)/Fe(CN)6(4-), Ce4+/Ce3+, VO3(-)NO2+, and I2/I- were tested as