Buscar
Mostrando ítems 11-19 de 19
Screening Brazilian commercial gasoline quality by hydrogen nuclear magnetic resonance spectroscopic fingerprintings and pattern-recognition multivariate chemometric analysis
(Elsevier B.V., 2010-06-30)
The identification of gasoline adulteration by organic solvents is not an easy task, because compounds that constitute the solvents are already in gasoline composition. In this work, the combination of Hydrogen Nuclear ...
Screening analysis of biodiesel feedstock using UV-vis, NIR and synchronous fluorescence spectrometries and the successive projections algorithm
(Elsevier Science, 2012-08)
This paper investigates the use of UV-vis, near infrared (NIR) and synchronous fluorescence (SF) spectrometries coupled with multivariate classification methods to discriminate biodiesel samples with respect to the base ...
Multivariate calibration in Fourier transform infrared spectrometry as a tool to detect adulterations in Brazilian gasoline
(2008)
In the present work, Fourier transform infrared spectroscopy (FTIR) in association with multivariate chemometrics classification
techniques was employed to identify gasoline samples adulterated with diesel oil, kerosene, ...
Vibrational Spectroscopy Coupled to a Multivariate Analysis Tiered Approach for Argentinean Honey Provenance Confirmation
(MDPI, 2020-10)
In the present work, the provenance discrimination of Argentinian honeys was used as case study to compare the capabilities of three spectroscopic techniques as fast screening platforms for honey authentication purposes. ...
Desarrollo de un modelo de identificación de adulterantes para control de calidad en ajo en polvo
(Universidad Nacional de ColombiaBogotá - Ciencias Agrarias - Maestría en Ciencia y Tecnología de AlimentosInstituto de Ciencia y Tecnología de Alimentos (ICTA)Facultad de Ciencias AgrariasBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá, 2022)
El fraude alimentario constituye una problemática global que no sólo afecta la economía sino también la salud y confianza del consumidor. El ajo en polvo es una especia susceptible a la adulteración con sustancias de bajo ...