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J. W. B. Braga
J. W. B. Braga
Institute of Chemistry, University of Brasília
Verified email at unb.br - Homepage
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Variable selection, outlier detection, and figures of merit estimation in a partial least-squares regression multivariate calibration model. A case study for the determination …
P Valderrama, JWB Braga, RJ Poppi
Journal of agricultural and food chemistry 55 (21), 8331-8338, 2007
1862007
Estado da arte de figuras de mérito em calibração multivariada
P Valderrama, JWB Braga, RJ Poppi
Química Nova 32, 1278-1287, 2009
1702009
Comparison of univariate and multivariate calibration for the determination of micronutrients in pellets of plant materials by laser induced breakdown spectrometry
JWB Braga, LC Trevizan, LC Nunes, IA Rufini, D Santos Jr, FJ Krug
Spectrochimica Acta Part B: Atomic Spectroscopy 65 (1), 66-74, 2010
1502010
Near infrared spectroscopy (NIRS) as a potential tool for monitoring trade of similar woods: Discrimination of true mahogany, cedar, andiroba, and curupixá
TCM Pastore, JWB Braga, VTR Coradin, WLE Magalhães, EYA Okino, ...
Holzforschung 65 (1), 73-80, 2011
1402011
Discrimination of whisky brands and counterfeit identification by UV–Vis spectroscopy and multivariate data analysis
AR Martins, M Talhavini, ML Vieira, JJ Zacca, JWB Braga
Food chemistry 229, 142-151, 2017
1212017
The use of near infrared spectroscopy to identify solid wood specimens of swietenia macrophylla0 (Cites Appendix II)
JWB Braga, TCM Pastore, VTR Coradin, JAA Camargos, AR da Silva
Iawa Journal 32 (2), 285-296, 2011
1162011
Optimization and validation of a LIBS method for the determination of macro and micronutrients in sugar cane leaves
LC Nunes, JWB Braga, LC Trevizan, PF de Souza, GGA de Carvalho, ...
Journal of Analytical Atomic Spectrometry 25 (9), 1453-1460, 2010
1052010
Development and analytical validation of a multivariate calibration method for determination of amoxicillin in suspension formulations by near infrared spectroscopy
MAM Silva, MH Ferreira, JWB Braga, MM Sena
Talanta 89, 342-351, 2012
1032012
Non-destructive identification of different types and brands of blue pen inks in cursive handwriting by visible spectroscopy and PLS-DA for forensic analysis
VAG Da Silva, M Talhavini, ICF Peixoto, JJ Zacca, AO Maldaner, ...
Microchemical Journal 116, 235-243, 2014
1002014
Validation of multivariate calibration models in the determination of sugar cane quality parameters by near infrared spectroscopy
P Valderrama, JWB Braga, RJ Poppi
Journal of the Brazilian Chemical Society 18, 259-266, 2007
902007
Evaluation of laser induced breakdown spectroscopy for cadmium determination in soils
D Santos Jr, LC Nunes, LC Trevizan, Q Godoi, FO Leme, JWB Braga, ...
Spectrochimica Acta Part B: Atomic Spectroscopy 64 (10), 1073-1078, 2009
882009
Development and validation of a chemometric method for direct determination of hydrochlorothiazide in pharmaceutical samples by diffuse reflectance near infrared spectroscopy
MH Ferreira, JWB Braga, MM Sena
Microchemical Journal 109, 158-164, 2013
812013
Discrimination and quantification of cocaine and adulterants in seized drug samples by infrared spectroscopy and PLSR
TS Grobério, JJ Zacca, ÉD Botelho, M Talhavini, JWB Braga
Forensic science international 257, 297-306, 2015
732015
NIRS identification of Swietenia macrophylla is robust across specimens from 27 countries
MCJ Bergo, TCM Pastore, VTR Coradin, AC Wiedenhoeft, JWB Braga
Iawa Journal 37 (3), 420-430, 2016
692016
Determination of viscosity index in lubricant oils by infrared spectroscopy and PLSR
JWB Braga, AA dos Santos Junior, IS Martins
Fuel 120, 171-178, 2014
672014
Validação de modelos de calibração multivariada: uma aplicação na determinação de pureza polimórfica de carbamazepina por espectroscopia no infravermelho próximo
JWB Braga, RJ Poppi
Química Nova 27, 1004-1011, 2004
672004
Determination of pesticides and metabolites in wine by high performance liquid chromatography and second-order calibration methods
JWB Braga, CBG Bottoli, ICSF Jardim, HC Goicoechea, AC Olivieri, ...
Journal of Chromatography A 1148 (2), 200-210, 2007
662007
Figures of merit for the determination of the polymorphic purity of carbamazepine by infrared spectroscopy and multivariate calibration
JWB Braga, RJ Poppi
Journal of pharmaceutical sciences 93 (8), 2124-2134, 2004
622004
Potential field-deployable NIRS identification of seven Dalbergia species listed by CITES
FA Snel, JWB Braga, D da Silva, AC Wiedenhoeft, A Costa, R Soares, ...
Wood Science and Technology 52, 1411-1427, 2018
552018
Determination of vegetable oils and fats adulterants in diesel oil by high performance liquid chromatography and multivariate methods
LFP Brandão, JWB Braga, PAZ Suarez
Journal of Chromatography A 1225, 150-157, 2012
552012
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