Results 11 to 20 of about 2,186,410 (361)
Application progress of supercritical fluid chromatography in food quality and safety
Shipin yu jixie, 2023 Modern supercritical fluid chromatography technology has better stability and robustness, which can be coupled with mass spectrometry. Supercritical fluid chromatography has the characteristics of high selectivity, high sensitivity and short consumption ...
XING Qianqian
doaj +1 more source
Double universality of the transition in the supercritical state [PDF]
Science Advances 8, eabq5183 (2022), 2022 Universality aids consistent understanding of physical properties. This includes understanding the states of matter where a theory predicts how a property of a phase (solid, liquid, gas) changes with temperature or pressure. Here, we show that the matter above the critical point has a remarkable double universality not limited by pressure and ...
arxiv +1 more source
Universal two-component dynamics in supercritical fluids [PDF]
The Journal of Physical Chemistry B 125(49), 13494-13501 (2021), 2021 Despite the technological importance of supercritical fluids, controversy remains about the details of their microscopic dynamics. In this work, we study four supercritical fluid systems -- water, Si, Te, and Lennard-Jones fluid -- \emph{via} classical molecular dynamics simulations.
arxiv +1 more source
Molecules, 2020 In this review, recent advances in greener technology for extracting natural bioactive components from plant origin sources are discussed. Bioactive compounds of plant origin have been defined as natural chemical compounds present in small amounts in ...
Pascaline Aimee Uwineza, A. Waśkiewicz
semanticscholar +1 more source
Energies, 2022 Cyclic supercritical multi-thermal fluid stimulation (CSMTFS) is a novel technology that can efficiently recover heavy oil, while the heating effect, production and heat loss characteristics of CSMTFS have not been discussed.
Jie Tian +5 more
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Study on the Phenolic Compounds and Antioxidant Activity of Gum Extract of Astragalus fasciculifolius Boiss [PDF]
Pizhūhish va Nuāvarī dar ̒Ulūm va Sanāyi̒-i Ghaz̠āyī, 2021 According to consumers trend for using natural conservator compounds, the efforts for finding new herbal resources replaced with synthetic antioxidant has increased.
Najmeh Khademi Pour +2 more
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Dose-Response, 2022 The volatiles chemical composition and biological attributes of coriander ( Coriandrum sativum L.) leaves essential oil obtained by two extraction techniques namely supercritical fluid extraction and hydro-distillation is appraised.
Ali Abbas +7 more
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Subcritical and supercritical bifurcations in axisymmetric viscoelastic pipe flows [PDF]
J. Fluid Mech. (2021), vol. 929, A16, 2021 Axisymmetric viscoelastic pipe flow of Oldroyd-B fluids has been recently found to be linearly unstable by Garg et al. Phys. Rev. Lett., 121.024502 (2018). From a nonlinear point of view, this means that the flow can transition to turbulence supercritically, in contrast to the subcritical Newtonian pipe flows.
arxiv +1 more source
Advances in supercritical fluid chromatography [PDF]
Analytical Science Advances, 2021 More than a century ago researchers recognized the unique properties that inorganic gases have above their critical point. Since then, different gases and liquids have been investigated. It was Ernst Klesper who reported on the very first chromatographic separations that used a supercritical fluid as the mobile phase back in 1962. In a brief report, he
Novakova, Lucie, Eeltink, Sebastiaan
openaire +4 more sources
AIChE Journal, Volume 69, Issue 1, January 2023., 2023 Abstract Lignin‐rich stream from lignocellulosic ethanol production was converted into biocrude by continuous hydrothermal liquefaction (HTL) while hydrogen was produced by aqueous phase reforming (APR) of the HTL aqueous by‐product. The effects of Na2CO3 and NaOH were investigated both in terms of processability of the feedstock as well as yield and ...
Arturo Di Fraia +8 more
wiley +1 more source