| PhotoMetrix: An application for univariate calibration and principal components analysis using colorimetry on mobile devices GA Helfer, VS Magnus, FC Böck, A Teichmann, MF Ferrão, AB Costa Journal of the Brazilian Chemical Society 28 (2), 328-335, 2017 | 140 | 2017 |
| Development of the Trophic Water Quality Index (TWQI) for subtropical temperate Brazilian lotic systems EA Lobo, M Schuch, CG Heinrich, AB Da Costa, A Düpont, CE Wetzel, ... Environmental monitoring and Assessment 187, 1-13, 2015 | 100 | 2015 |
| PhotoMetrix and colorimetric image analysis using smartphones FC Böck, GA Helfer, AB da Costa, MB Dessuy, MF Ferrão Journal of Chemometrics 34 (12), e3251, 2020 | 96 | 2020 |
| Fourier transform infrared spectroscopy (FTIR) and multivariate analysis for identification of different vegetable oils used in biodiesel production D Mueller, MF Ferrão, L Marder, AB Da Costa, ... Sensors 13 (4), 4258-4271, 2013 | 66 | 2013 |
| Point-of-use electroanalytical platform based on homemade potentiostat and smartphone for multivariate data processing GF Giordano, MBR Vicentini, RC Murer, F Augusto, MF Ferrão, GA Helfer, ... Electrochimica Acta 219, 170-177, 2016 | 58 | 2016 |
| Chemostat, um software gratuito para análise exploratória de dados multivariados GA Helfer, F Bock, L Marder, JC Furtado, AB Costa, MF Ferrão Química Nova 38 (4), 575-579, 2015 | 58 | 2015 |
| Tratado internacional de cosmecêuticos A Costa Grupo Gen-Guanabara Koogan, 2000 | 57 | 2000 |
| A computational model for soil fertility prediction in ubiquitous agriculture GA Helfer, JLV Barbosa, R dos Santos, AB da Costa Computers and Electronics in Agriculture 175, 105602, 2020 | 54 | 2020 |
| Fast methodology for identification of olive oil adulterated with a mix of different vegetable oils PF Filoda, LF Fetter, F Fornasier, RCS Schneider, GA Helfer, B Tischer, ... Food Analytical Methods 12 (1), 293-304, 2019 | 50 | 2019 |
| Rapid determination of ethanol in sugarcane spirit using partial least squares regression embedded in smartphone FC Böck, GA Helfer, AB da Costa, MB Dessuy, MF Ferrão Food Analytical Methods 11, 1951-1957, 2018 | 47 | 2018 |
| A new tool for interpretation of thermal stability of raw milk by means of the alizarol test using a PLS model on a mobile device GA Helfer, B Tischer, PF Filoda, AB Parckert, RB dos Santos, ... Food Analytical Methods 11, 2022-2028, 2018 | 39 | 2018 |
| Direct ffame solid sampling for atomic absorption spectrometry: determination of copper in bovine liver EM de Moraes Flores, AB da Costa, JS Barin, VL Dressler, JNG Paniz, ... Spectrochimica Acta Part B 56, 18751882, 2001 | 39 | 2001 |
| Calibration of water quality index (WQI) based on Resolution nº 357/2005 of the Environment National Council (CONAMA) DL Moretto, RE Panta, AB Costa, EA Lobo Acta Limnologica Brasiliensia 24, 29-42, 2012 | 38 | 2012 |
| Cadmium determination in biological samples by direct solid sampling flame atomic absorption spectrometry ÉM de Moraes Flores, JNG Paniz, AF Martins, VL Dressler, EI Müller, ... Spectrochimica Acta Part B: Atomic Spectroscopy 57 (12), 2187-2193, 2002 | 38 | 2002 |
| Direct determination of tannins in Acacia mearnsii bark using near-infrared spectroscopy CM Menezes, AB da Costa, RR Renner, LF Bastos, MF Ferrão, ... Analytical Methods 6 (20), 8299-8305, 2014 | 35 | 2014 |
| Infrared thermal imaging: a tool for simple, simultaneous, and high-throughput enthalpimetric analysis JS Barin, B Tischer, AS Oliveira, R Wagner, AB Costa, EMM Flores Analytical Chemistry 87 (24), 12065-12070, 2015 | 32 | 2015 |
| Métodos de custeio por absorção e variável na ovinocultura de corte: estudo de caso em uma cabanha ML Eyerkaufer, A Costa, AC de Faria Organizações Rurais & Agroindustriais 9 (2), 202-215, 2007 | 31 | 2007 |
| PhotoMetrix UVC: a new smartphone-based device for digital image colorimetric analysis using PLS regression AB Costa, GA Helfer, JLV Barbosa, ID Teixeira, RO Santos, RB Santos, ... Journal of the Brazilian Chemical Society 32, 675-683, 2021 | 30 | 2021 |
| Chemostat: exploratory multivariate data analysis software GA Helfer, F Bock, L Marder, JC Furtado, AB Costa, MF Ferrão Química nova 38, 575-579, 2015 | 30 | 2015 |
| Element determination in pharmaceuticals using direct solid analysis-electrothermal vaporization inductively coupled plasma optical emission spectrometry S Kaczala, AB Costa, EL Posselt, JS Barin, EMM Flores, VL Dressler Journal of the Brazilian Chemical Society 26, 475-483, 2015 | 30 | 2015 |