Results 11 to 20 of about 31,758 (223)

Development of a Preparative Method for Obtaining an Enantiomerically Pure Substance of Salbutamol by Supercritical Fluid Chromatography

open access: yesРазработка и регистрация лекарственных средств, 2022
Introduction. An increasing number of studies conducted in various countries in the field of biopharmacy convincingly show the differences in the physiological effects on the human body of stereoisomers of pharmaceutical substances. As a rule, one of the
V. N. Tsarev   +2 more
doaj   +1 more source

A Study on Generation and Feasibility of Supercritical Multi-Thermal Fluid

open access: yesEnergies, 2022
Supercritical multi-thermal fluid is an emerging and efficient heat carrier for thermal recovery of heavy oil, but the generation of supercritical multi-thermal fluid and its feasibility in thermal recovery are rarely discussed. In this paper, generation
Xiaoxu Tang   +4 more
doaj   +1 more source

Supercritical fluid chromatography for vitamin and carotenoid analysis: an update covering 2011-2021

open access: yesJournal 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   +1 more source

Liquid chromatographic strategies for separation of bioactive compounds in food matrices [PDF]

open access: yes, 2018
Nowadays, there is an increasing attention for nutraceuticals and, in general, bioactive compounds naturally present in food. Indeed, the possibility of preserving human health and preventing disease (e.g., cardiovascular diseases, cancer etc.) by the ...
Capriotti, Anna Laura   +5 more
core   +1 more source

The way to ultrafast, high-throughput enantioseparations of bioactive compounds in liquid and supercritical fluid chromatography [PDF]

open access: yes, 2018
Until less than 10 years ago, chiral separations were carried out with columns packed with 5 or 3 μm fully porous particles (FPPs). Times to resolve enantiomeric mixtures were easily larger than 30 min, or so.
Catani, Martina   +8 more
core   +2 more sources

Super/subcritical fluid chromatography with packed columns: state of the art and applications

open access: yesQuímica Nova, 2014
Separations using supercritical fluid chromatography (SFC) with packed columns have been re-discovered and explored in recent years. SFC enables fast and efficient separations and, in some cases, gives better results than high performance liquid ...
Carla Grazieli Azevedo da Silva   +1 more
doaj   +1 more source

Densities and phase equilibria of hydrogen, propane and vegetable oil mixtures. Experimental data and thermodynamic modeling [PDF]

open access: yes, 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

Pressurised Liquid Extraction of Capsaicinoids from Peppers [PDF]

open access: yes, 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

Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications [PDF]

open access: yes, 2012
In this review, we describe the use of supercritical CO2 (scCO2) in several cellulose applications. The focus is on different technologies that either exist or are expected to emerge in the near future.
Camy, Séverine   +2 more
core   +3 more sources

Electrocarboxylation in supercritical CO2 and CO2-expanded liquids [PDF]

open access: yes, 2008
In this study, the electrocarboxylation of benzyl chloride in pressurized CO2, or pressurized mixtures of dimethylformamide (DMF) and CO2, was investigated in order to synthesize phenylacetic acid.
Camy, Séverine   +3 more
core   +1 more source

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