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Comparison of attenuated total reflectance mid-infrared, near infrared, and 1h-nuclear magnetic resonance spectroscopies for the determination of coffee’s geographical origin
The sensorial properties of Colombian coffee are renowned worldwide, which is reflected in its market value. This raises the threat
of fraud by adulteration using coffee grains from other countries, thus creating a demand ...
Critical coupling layer thickness for positive or negative Goos-Hänchen shifts near the excitation of backward surface polaritons in Otto-ATR systems
(IOP Publishing, 2015-05)
We present a theoretical analysis of the lateral displacement (Goos-Hänchen shift) of spatially limited beams reflected from attenuated total reflection (ATR) devices in the Otto configuration when backward surface plasmon ...
FTIR and chemometrics as effective tools in predicting the quality of specialty coffees
(Universidade Federal de Minas GeraisBrasilFAR - DEPARTAMENTO DE ALIMENTOSICX - DEPARTAMENTO DE QUÍMICAUFMG, 2020)
Aplicação de técnicas espectroscópicas vibracionais e imagens hiperespectrais na detecção de fraudes em carnes bovinas in natura
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE QUÍMICAPrograma de Pós-Graduação em QuímicaUFMG, 2019-09-25)
Large and recent meat fraud scandals have raised concerns about food security in Brazil. The addition of salts solutions and others adulterants, such as carrageenan (a linear sulphated polysaccharide extracted from red ...
Detection of adulterants in grape nectars by attenuated total reflectance fourier-transform mid-infrared spectroscopy and multivariate classification strategies
(Universidade Federal de Minas GeraisBrasilFAR - DEPARTAMENTO DE ALIMENTOSICX - DEPARTAMENTO DE QUÍMICAUFMG, 2018)
Attenuated total reflectance fourier transform spectroscopy (ATR-FTIR) and chemometrics for discrimination of espresso coffees with different sensory characteristics
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA MECÂNICAFAR - DEPARTAMENTO DE ALIMENTOSICEX - INSTITUTO DE CIÊNCIAS EXATASUFMG, 2019)
Development and validation of an environmentally friendly attenuated total reflectance in the mid-infrared region method for the determination of ethanol content in used engine lubrication oil
(2013-03-14)
Lubricating oils are crucial in the operation of automotive engines because they both reduce friction between moving parts and protect against corrosion. However, the performance of lubricant oil may be affected by ...
Development and validation of an environmentally friendly attenuated total reflectance in the mid-infrared region method for the determination of ethanol content in used engine lubrication oil
(2013-03-14)
Lubricating oils are crucial in the operation of automotive engines because they both reduce friction between moving parts and protect against corrosion. However, the performance of lubricant oil may be affected by ...
Determination of apparent reducing sugars, moisture and acidity in honey by attenuated total reflectance-Fourier transform infrared spectrometry
(Elsevier Science BvAmsterdamHolanda, 2007)