Buscar
Mostrando ítems 31-40 de 857
Liquid chromatography/electrospray ionization tandem mass spectrometry profiling of compounds from the infusion of Byrsonima fagifolia Niedenzu
(Wiley-Blackwell, 2007-01-01)
A rapid analytical approach suitable to achieve a comprehensive characterization of the compounds present in the infusion prepared from the leaves of Byrsonima fagifolia Niedenzu (Malpighiaceae), a Brazilian plant used as ...
Temperature dependency of aqueous biphasic systems: An alternative approach for exploring the differences between Coulombic-dominated salts and ionic liquids
(2017-01-01)
Herein we propose an alternative way to distinguish ionic liquids from Coulombic-dominated salts, based not on their upper limit melting temperature (100 °C), but on the trend of their phase-forming abilities to create ...
Application of liquid chromatography/electrospray ionization tandem mass spectrometry to the analysis of polyphenolic compounds from an infusion of Byrsonima crassa Niedenzu
(Wiley-Blackwell, 2005-01-01)
A fast and reliable method, based on high-performance liquid chromatography coupled to electrospray ionization ion trap tandem mass spectrometry (HPLC/ESI-ITMS), was developed to investigate the infusion prepared from the ...
Characterization of flavonoid and naphthopyranone derivatives from Eriocaulon ligulatum using liquid chromatography tandem mass spectrometry
(2009-12-01)
Liquid chromatography-electrospray ionization multistage ion trap mass spectrometry (LC-ESI-IT-MSn) was used to analyze the secondary metabolites in the methanol extract of the capitulae of Eriocaulon ligulatum. The major ...
Erratum: Directional edge enhancement using a liquid-crystal display (Optics Communications (2010) 283 (2803))
(2011)
[No abstract available]
Erratum: Directional edge enhancement using a liquid-crystal display (Optics Communications (2010) 283 (2803))
(2011)
[No abstract available]
Cambios producidos en la profesión de periodista gráfico a partir de transformaciones en las relaciones laborales propias de la Modernidad Líquida
(Universidad de Belgrano - Facultad de Derecho y Ciencias Sociales - Licenciatura en Ciencias de la Comunicación, 2015)
A fines de octubre del año pasado murió en su casa de Washington DC el veterano periodista Ben Bradlee. Tenía 93 años. Había sido soldado en la Segunda Guerra Mundial y editor de la revista Newsweek antes de subir escalones ...
Characterization of flexible DNA films
(ELSEVIER SCIENCE INCNEW YORK, 2012)
Polymer electrolytes (PEs) are currently the focus of much attention as potential electrolytes in electrochemical devices such as batteries, display devices and sensors. Deoxyribonucleic acid (DNA) as an important biological ...
Predicting phase inversion in agitated dispersions with machine learning algorithms
(Taylor & Francis, 2020-09)
In agitated systems, the phase inversion (PI) phenomenon–the mechanism by which a dispersed phase becomes the continuous one–has been studied extensively in an empirical manner, and few models have been put forward through ...