Buscar
Mostrando ítems 31-40 de 3791
UV/Vis spectroscopy combined with chemometrics for monitoring solid-state fermentation with Rhizopus microsporus var. oligosporus
(2017-10-01)
BACKGROUND: Difficulties in bioprocess monitoring are a drawback of solid-state fermentation (SSF). Specifically, monitoring of enzyme activities in SSF is not an easy task. This work aimed to calibrate partial least squares ...
Spectroscopy Studies of Cellulose Nanofiber‐ and Cellulose Nanocrystal‐Based Nanocomposites
(Wiley Blackwell Publishing, Inc, 2017)
Although the use of cellulose‐reinforced composites has been growing since the 1990s, it is only during the last years and following the general boom of nanotechnology that the research on nanocellulose polymer composites ...
Multivariate calibration applied in UV-Vis spectroscopy data to determine total acidity in wines
(Universidade Tecnológica Federal do Paraná (UTFPR), 2015)
Propuesta de práctica sustentable usando un prototipo espectrofotométrico elaborado con materiales electrónicos fáciles de obtener
(Universidad Autónoma Metropolitana (México). Unidad Azcapotzalco. División de Ciencias Básicas e Ingeniería., 2021)
La formación de profesionales en el área química demanda la necesidad de desarrollar habilidades y criterios experimentales que solo pueden ser cubiertos a través del trabajo en laboratorio. Sin embargo, en la mayoría de ...
Biotransformation of poly (epsilon-caprolactone) and poly (vinyl chloride) blend
(Sociedade Brasileira de Microbiologia, 2003-11-01)
Poli épsilon-caprolactona é um importante polímero biodegradável e miscível com o PVC, um polímero sintético industrial, termo susceptível e não biodegradável. A blenda PVC/PCL é importante em propriedades mecânicas e ...
Biotransformation of poly (epsilon-caprolactone) and poly (vinyl chloride) blend
(Sociedade Brasileira de Microbiologia, 2003-11-01)
Poli épsilon-caprolactona é um importante polímero biodegradável e miscível com o PVC, um polímero sintético industrial, termo susceptível e não biodegradável. A blenda PVC/PCL é importante em propriedades mecânicas e ...
Spectroscopy Analysis of the Ring Opening Reaction in Functionalized Spiropyran Films
(2012-11-27)
In this work we used the Fourier Transform Infrared spectroscopy and UV/Vis spectroscopy
to analyze the behaviour of self-ensemble films of spiropyran when the films were irradiated by
UV. In UV/Vis spectroscopy is ...
Adsorção do corante azul de metileno em partículas de argilominerais: análise dos tamanhos das partículas
(Sociedade Brasileira de Química, 2011)
Interactions of cationic dye methylene blue (MB) with clay particles in aqueous suspension have been extensively studied. As already known, the number of natural negative charges on the clay modifies significantly the ...