Results 51 to 60 of about 153,377 (362)
Journal of Open Research Software, 2016 This paper aimed to develop a standalone application for optimizing flow rates in liquid chromatography (LC), gas chromatography (GC) and supercritical fluid chromatography (SFC). To do so, Van Deemter’s equation, Knox’ equation and Golay’s equation were
Joris Meurs
doaj +1 more source
Separations, 2022 Food, drugs, dyes, extracts, and minerals are all made up of complex elements, and utilizing unidimensional chromatography to separate them is inefficient and insensitive.
Ruhul Amin +6 more
doaj +1 more source
Stochastic and Deterministic Vector Chromatography of Suspended Particles in 1D-Periodic Potentials [PDF]
Phys. Rev. Lett. 108, 214501 (2012), 2011 We present a comprehensive description of vector chromatography that includes deterministic and stochastic transport in 1D-periodic free-energy landscapes, with both energetic and entropic contributions, and highlights the parameters governing the deflection angle, i.e. the Peclet number and the partition ratio.
arxiv +1 more source
Atriplex mollis desf. Aerial parts: extraction procedures, secondary metabolites and color analysis [PDF]
, 2018 A method using high-performance liquid chromatography coupled with a photodiode array detector was proposed for the rapid characterization of different phenolic constituents from the extracts of Atriplex mollis aerial parts.
Benayache, Fadila +11 more
core +1 more source
Densities and phase equilibria of hydrogen, propane and vegetable oil mixtures. Experimental data and thermodynamic modeling [PDF]
, 2017 Heterogeneous catalytic gas-liquid reactions are intensified when carried out in the homogenous fluid phase by means of a supercritical co-solvent.
Esteban A. Brignole +6 more
core +1 more source
Rapid Communications in Mass Spectrometry, EarlyView., 2023 Rationale The present work shows comprehensive chromatographic methods and MS conditions that have been developed based on the chemical properties of each lipid subclass to detect low‐abundance molecular species. This study shows that the developed methods can detect low‐ and/or very‐low‐abundant lipids like phosphatidic acid (PA) in the ...
Bebiana C. Sousa +6 more
wiley +1 more source
Supercritical fluid chromatography for vitamin and carotenoid analysis: an update covering 2011-2021
Journal of Chromatography Open, 2022 As it is known, the chromatographic separations of vitamins is not a trivial issue. The subtle heterogeneity among homologs belonging to the same group makes it difficult to perform their speciation.
Pierpaolo Tomai +5 more
doaj
First Isolation of Enantiopure Perfluoroalkylated Sulfilimines and Sulfoximines
CHIMIA, 2014 Mono-, di- and trifluoromethyl sulfilimines and sulfoximines have been isolated for the first time in enantiopure form by separation of the racemate by supercritical fluid chromatography.
Thanh-Nghi Le +8 more
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A corresponding-state framework for the structural transition of supercritical fluids across the Widom delta [PDF]
J. Chem. Phys. 150, 154503 (2019), 2018 This work proposes a classification algorithm based on the radical Voronoi tessellation to define the Widom delta, supercritical gas-liquid coexistence region, of polyatomic molecules. In specific, we use a weighted mean-field classification method to classify a molecule into either gas-like or liquid-like.
arxiv +1 more source
Antioxidants, 2023 Aromatic and medicinal plants are a great source of useful bioactive compounds for use in cosmetics, drugs, and dietary supplements. This study investigated the potential of using supercritical fluid extracts obtained from Matricaria chamomilla white ray
Laura Pastare +8 more
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