Results 41 to 50 of about 157,527 (353)
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
Modeling Heat Capacity of Supercritical Fluids: A Phonon Theory Approach [PDF]
arXiv, 2023 Recent research shows that liquids and dense supercritical fluids support high frequency shear waves. Here, we proposed a general heat capacity model of supercritical fluids using the latest theoretical findings (the liquid phonon theory). In this theory, heat capacity cv of supercritical fluids is only related to the infinite-frequency shear modulus ...
arxiv
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
Foods, 2021 Biorefining by enzymatic hydrolysis (EH) of lignocellulosic waste material due to low costs and affordability has received enormous interest amongst scientists as a potential strategy suitable for the production of bioactive ingredients and chemicals. In
Vitalijs Radenkovs +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
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
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
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
doaj +1 more source
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
Pressurised Liquid Extraction of Capsaicinoids from Peppers [PDF]
, 2006 Se presenta el desarrollo de un método de extracción de capsaicinoides en pimientos mediante la técnica de extracción mediante fluidos ...
Fernández Barbero, Gerardo +2 more
core +2 more sources