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Discrimination of Brazilian green canephora coffee beans by ultraviolet-visible spectroscopy as a non-target analysis: a tool for recognizing geographical indications. Author(s): MORAES NETO, V. F. de; BAQUETA, M. R.; CARAMÊS, E. T. dos S.; SANTANA, F. B. de; ALVES, E. A.; PALLONE, J. A. L. This study aims to evaluate the feasibility of using the UV–Vis spectroscopy technique associated with a PLS-DA model to discriminate Robusta Amazônico from Conilon coffees in the state of Espírito Sa... ... Repository: BDPA Publication year: 2024
Terra preta de indio "Dark Earth Soils": chemical and spectroscopic characterization of humic acids. Author(s): CUNHA, T. J. F.; MADARI, B. E.; MARTIN NETO, L.; CANELLAS, L. P.; NOVOTNY, E. H.; MELO, V. B.; SIMÕES, M.; SILVA, W. T. L. da; MILORI, D.; PETRERE, V. G.; SANTOS, G. de A. The HA of Amazonian dark earth soils (Terra Preta de Índio) from Brazilian territory were characterized using ultraviolet-visible, Fourier transform diffuse reflectance infrared, fluorescence excitati... ... Repository: BDPA Publication year: 2007
Soil classification from visible/near-infrared diffuse reflectance spectra at multiple depths. Author(s): VASQUES, G. de M.; DEMATTE, J. A. M.; LOPEZ, L. R.; TERRA, F. da S. Abstract : Visible/near-infrared diffuse reflectance spectroscopy (VNIRS) offers an alternative to conventional analytical methods to estimate various soil attributes. However, the use of VNIRS in soi... ... Repository: BDPA Publication year: 2011
Use of inductively coupled plasma mass spectroscopy and chemometrics tools for traceability of Brazilian meat. Author(s): GROMBONI, C. E.; CARAPELLI, R.; CAZO, N. A.; PEREIRA FILHO, E. R.; TULLIO, R. R.; NOGUEIRA, A. R. de A. Repository: BDPA Publication year: 2011
Enhancing Co3O4 nanoparticles: Investigating the impact of nickel doping and high-temperature annealing on NiCo2O4/CoO heterostructures. Author(s): CARDENAS F., L. J.; CHIMENOS, J. M.; MORENO A., L. C.; PARIS, E. C.; JOYA, M. R. Abstract: In this study, we investigated the phase transition of cobalt spinel (Co3O4) nanoparticles into Co3?xNixO4/CoO heterostructures by introducing varying amounts of nickel (x = 0.0–0.16) and su... ... Repository: BDPA Publication year: 2023
Characterization of an Amazon Soil Profile by Laser-Induced Breakdown, Raman, and Fluorescence Spectroscopies. Author(s): HUAMÁN, J. L. C.; TADINI, A. M.; SENESI, G. S.; MOUNIER, S.; MILORI, D. M. B. P.; NICOLODELLI, G. This work aimed to investigate, in detail, the elemental and molecular composition of soil samples collected from the various horizons of an Amazon spodosol profile by combining the atomic technique l... ... Repository: BDPA Publication year: 2023
Front-face fluorescence spectroscopy of tryptophan and fluorescein using laser induced fluorescence and excitation emission matrix fluorescence. Author(s): MOUNIER, S.; REDON, R.; NICOLODELLI, G.; MILORI, D. M. B. P. Repository: BDPA Publication year: 2017
13C-NMR spectroscopy evaluation of different pyrolysis feedstock. Author(s): NOVOTNY, E. H.; ROMEIRO, G. A.; FIGUEIREDO, M. K. K.; ROCHA, J. D.; AZEVEDO, E. R. de; BONAGAMBA, T. J.; HAYES, M. H. B. Different feedstocks and different pyrolysis processes produce carbonized materials (biochar) with different properties. The properties of these materials are very important when considering their agr... ... Repository: BDPA Publication year: 2008
Insights into the composition of humin from an irish grassland soil. Author(s): BYRNE, C. M.; NOVOTNY, E. H.; HATCHER, P. G.; HAYES, M. H. B. Humin is defined as the fraction of the humic substances (HS) that is insoluble in aqueous solution at any pH value (1). Because of its insolubility it has been the least studied of all the humic frac... ... Repository: BDPA Publication year: 2008
Green mecanochemical process for carbon nanotubes coating with humic acid: application and ecotoxicity evaluation. Author(s): COA, F.; CLEMENTE, Z.; LOPES, J. R.; RODRIGUES NETO, L. L.; ALVES, O. L.; CASTRO, V. L. S. S. de; BARBIERI, E.; MARTINEZ, D. S. T. Nanomaterials (NM) are promising for environmental remediation due to their unreleased properties such as high surface area and reactivity. Chemical oxidations (H2SO4/HNO3) have been applied to carbon... ... Repository: BDPA Publication year: 2016

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