Results 71 to 80 of about 153,377 (362)

Enhancement of dissolution of atorvastatin through preparation of polymeric solid dispersions using supercritical fluid technology

Research in Pharmaceutical Sciences, 2020
Background and purpose: This study aimed at preparation of solid dispersions in order to enhance dissolution of poorly water-soluble atorvastatin using supercritical CO2 technology.
Bashar Altaani, Rana Obaidat, Walaa Malkawi   +2 more
doaj   +1 more source

Decarboxylation Study of Acidic Cannabinoids: A Novel Approach Using Ultra-High-Performance Supercritical Fluid Chromatography/Photodiode Array-Mass Spectrometry

Cannabis and Cannabinoid Research, 2016
Introduction: Decarboxylation is an important step for efficient production of the major active components in cannabis, for example, Δ9-tetrahydrocannabinol (Δ9-THC), cannabidiol (CBD), and cannabigerol (CBG).
Mei Wang, Yan-Hong Wang, B. Avula, M. Radwan, A. Wanas, J. van Antwerp, J. Parcher, M. Elsohly, I. Khan   +8 more
semanticscholar   +1 more source

Metal‐Free, Selective Ortho‐Deuteration of N‐Heterocyclic Oxides

Advanced Synthesis &Catalysis, EarlyView.
Abstract Replacing hydrogen with deuterium raises the activation energy for C−D bond cleavage. This approach has gained attention in drug design, especially to protect the ortho‐position of pyridines, which are susceptible to enzymatic oxidation.
Arianna Montoli, Alessandro Dimasi, Andrea Citarella, Paolo Ronchi, Daniele Passarella, Valerio Fasano   +5 more
wiley   +1 more source

Validation of a dry‐slide immunoassay for progesterone analysis in canine plasma in a clinical setting

Veterinary Clinical Pathology, Volume 51, Issue 4, Page 524-532, December 2022., 2022
Abstract Background The identification of canine ovulation is critical for successful breeding. Progesterone measurements are useful for identifying ovulation. Progesterone assays are also quantitative and easily accessed, making them valuable in veterinary practice.
Sarah Østergård Jensen, Josefine Öberg, Helene Alm, Bodil S. Holst   +3 more
wiley   +1 more source

Fluidos supercríticos em química analítica. III.: aplicações Supercritical fluids in analytical chemistry. III.: applications

Química Nova, 2006
The first two papers in this series described the basic theory involved in supercritical fluid chromatography (SFC), how the technique evolved from gas and liquid chromatography and how the instrumentation was developed.
Emanuel Carrilho, Maria Cecília H. Tavares, Fernando M. Lanças   +2 more
doaj   +1 more source

ChemInform Abstract: Preparative Supercritical Fluid Chromatography [PDF]

ChemInform, 1998
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
M. Shaimi, P. Jusforgues
openaire   +3 more sources

Effective and Practical Stereoselective Synthesis of Nutlins Precursors by Immobilization of Privileged Chiral Mono‐Amidine Catalyst

Advanced Synthesis &Catalysis, EarlyView.
Abstract A strategy for the immobilization of Johnston's Mono(AMidine) catalyst (MAM) onto polystyrene, silica and hybrid silica‐polystyrene nanoparticles is presented. The catalyst activity was evaluated in the stereoselective aza‐Henry reaction leading to the pivotal β‐amino nitroalkane precursors of the anti‐cancer agents Nutlins (with Nutlin‐3a as ...
Sofia Toldo, Lorenzo Poletti, Graziano Di Carmine, Olga Bortolini, Carmela De Risi, Simona Felletti, Greta Compagnin, Alessandro Massi, Daniele Ragno   +8 more
wiley   +1 more source

The need to merge supercritical fluid chromatography into undergraduate curricula for the twenty-first century

Green Chemistry Letters and Reviews, 2021
Complementarity to liquid and gas chromatography, supercritical fluid chromatography (SFC) is becoming a mainstream separation technique. There is a global demand for more SFC users since ‘green’ method development has become a favorable target for ...
Tricia Naicker, Kamini Govender
doaj   +1 more source

Structural behavior of supercritical fluids under confinement [PDF]

Physical Review E 97,012131 (2018), 2018
The location of the Frenkel line (FL) of a Lennard-Jones fluid which demarcates two distinct physical states, liquidlike and gaslike within the supercritical regime, has been established through molecular dynamics (MD) simulations of the velocity auto-correlation (VACF) and Radial distribution Function (RDF). We, in this article, explore the changes in
arxiv   +1 more source

Supercritical Water Gasification: Practical Design Strategies and Operational Challenges for Lab-Scale, Continuous Flow Reactors

, 2019
Optimizing an industrial-scale supercritical water gasification process requires detailed knowledge of chemical reaction pathways, rates, and product yields. Laboratory-scale reactors are employed to develop this knowledge base.
Gorman, David J., Kramlich, John C., Novosselov, Igor V., Pinkard, Brian R., Rasmussen, Elizabeth G., Reinhall, Per G., Tiwari, Kartik   +6 more
core   +1 more source