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Fraud investigation in commercial coffee by chromatography. Author(s): MARTINS, V. de C.; GODOY, R. L. de O.; GOVÊA, A. C. M. S.; SANTIAGO, M. C. P. de A.; BORGUINI, R. G.; BRAGA, E. C. de O.; PACHECO, S.; NASCIMENTO, L. da S. de M. do Coffee is currently the second largest commodity on the world market today, and there is great concern about the quality of the beans exported from producer countries to Europe and USA. Practices such... ... Repository: BDPA Publication year: 2018
Evolution of anthocyanin content during grape ripening and characterization of the phenolic profile of the resulting wine by comprehensive two-dimensional liquid chromatography. Author(s): LAGO, L. O.; SWIT, P.; SILVA, M. M. da; BIASOTO, A. C. T.; WELKE, J.; MONTERO, L.; HERRERO, M. Abstract: The typical phenolic profile in grapes is characterized by its complexity both in terms of number of diverse chemical structures and their variation during ripening. Besides, the specific ph... ... Repository: BDPA Publication year: 2023
Relevant compounds of brazilian chardonnay wines and sparkling wines unveiled using comprehensive twodimensional gas chromatography. Author(s): WELKE, J. E.; NICOLLI, K. P.; PULGATI, F.; ZANUS, M. C.; ZINI, C. A. This work employed HS-SPME, comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometric detector (GC × GC/TOFMS),statistical tools, andodor activity values (OAV) for the an... ... Repository: BDPA Publication year: 2014
Comparison of mate tea aromatic profiles by means of a descriptive panel and gas chromatography. Author(s): BUTTERFIELD, T.; GODOY, R. C. B. de; KOPPEL, K. Repository: BDPA Publication year: 2020
Characterization of the volatile profile of Brazilian Merlot wines through comprehensive two dimensional gas chromatography time-of-flight mass spectrometric detection. Author(s): WELKE, J. E.; MANFROI, V.; ZANUS, M. C.; LAZZAROTTO, M.; ZINI, C. A. Wine aroma is an important characteristic and may be related to certain specific parameters, such as raw material and production process. The complexity of Merlot wine aroma was considered suitable fo... ... Repository: BDPA Publication year: 2012
Determination of herbicides in human urine by liquid chromatography-mass spectrometry with electrospray ionization. Author(s): JARDIM, I. C. S. F.; POZZEBON, J. M.; QUEIROZ, S. C. do N. de Repository: BDPA Publication year: 2006
Comparison of photoacoustic spectroscopy and gas chromatography for the assessment of soil greenhouse gases emissions. Author(s): NICOLOSO, R. da S.; BAYER, C.; DENEGA, G. L.; OLIVEIRA, P. A. V. de; HIGARASHI, M. M.; CORREA, J. C.; LOPES, L. dos S. Repository: BDPA Publication year: 2013
Separation of isomers of trienoic conjugated fatty acids by multidimensional gas chromatography. Author(s): BIZZO, H. R.; ANTONIASSI, R.; FARIA-MACHADO, A. F.; CONCEIÇÃO, L. D. H. C. S.; JUNQUEIRA, N. T. V. Repository: BDPA Publication year: 2012
Characterization of aromatic profiles in brazilian tropical wines determined by gas chromatography and multivariate statistical analysis. Author(s): ARAÚJO, A. J. de B.; VANDERLINDE, R.; LIMA, L. L. de A.; PEREIRA, G. E. Tropical wines have been produced in Thailand, India, Venezuela and mainly in Northeastem Brazil. In Brazil, this activity started twenty-five years ago and has been studied only in the last years. In... ... Repository: BDPA Publication year: 2011
Determination of nitrate in lettuce by ion chromatography after microwave water extraction. Author(s): NOVAES, H. B.; VAITSMAN, D. S.; DUTRA, P. B.; PEREZ, D. V. Lettuce is worldwide known as the most important vegetable. In this context, most farmers are searching new techniques for best quality products including hydropony. However, nitrate is of great conce... ... Repository: BDPA Publication year: 2009

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