Results 61 to 70 of about 31,614 (201)

Essential Oils from Humulus Lupulus scCO₂ Extract by Hydrodistillation and Microwave-Assisted Hydrodistillation

Molecules, 2018
Two different extraction methods were used for a comparative study of essential oils obtained from the Humulus lupulus scCO2 (sc-supercritical) extract: microwave-assisted hydrodistillation (MAHD) and conventional hydrodistillation (HD). As a result, the
Katarzyna Tyśkiewicz, Roman Gieysztor, Marcin Konkol, Jan Szałas, Edward Rój   +4 more
doaj   +1 more source

Chirale stationäre Phasen mit (+)-(R)-N-(1-Phenylethyl)-N?-[3-(diethoxymethylsilyl)propyl]harnstoff für die direkte Enantiomerentrennung mit Kapillargaschromatographie und überkritischer Fluidchromatographie

CHIMIA, 1991
Five different polymer stationary phases with (+)-(R)-N-(1-phenylethyl)-N?-[3-(diethoxymethylsilyl)propyl]urea as the chiral selector have been synthesized and tested for direct enantiomer separation in capillary gas and supercritical fluid ...
André Marti, Peter Krähenbühl, René Brügger, Hans Arm   +3 more
doaj   +2 more sources

Differentiation of ring‐substituted regioisomers of cathinone analogs by supercritical fluid chromatography

Analytical Science Advances, 2020
Various new psychoactive substances, such as cathinone and its analogs, possess similar chemical structures. Accurate identification of structurally similar drugs of abuse is important in forensic drug analysis.
Hiroki Segawa, Kosuke Kusakabe, Ayumu Ishii, Noriyuki Kato, Yuko T. Iwata, Tadashi Yamamuro, Kenji Kuwayama, Kenji Tsujikawa, Tatsuyuki Kanamori   +8 more
doaj   +1 more source

Comparative study of green sub- and supercritical processes to obtain carnosic acid and carnosol-enriched rosemary extracts with in vitro anti-proliferative sctivity on colon cancer cells [PDF]

, 2017
In the present work, four green processes have been compared to evaluate their potential to obtain rosemary extracts with in vitro anti-proliferative activity against two colon cancer cell lines (HT-29 and HCT116).
Cifuentes, Alejandro, García-Cañas, Virginia, Herrero, Miguel, Ibáñez, Elena, Sánchez-Camargo, A. P.   +4 more
core   +1 more source

Impacts of Extraction Methods in the Rapid Determination of Atrazine Residues in Foods using Supercritical Fluid Chromatography and Enzyme-Linked Immunosorbent Assay: Microwave Solvent vs. Supercritical Fluid Extractions

The Scientific World Journal, 2005
It is an accepted fact that many food products that we eat today have the possibility of being contaminated by various chemicals used from planting to processing.
Mohamed H. El-Saeid, Ijeoma Kanu, Ebere C. Anyanwu, Mahmoud A. Saleh   +3 more
doaj   +1 more source

Purification of supercritical-fluid carotenoid-rich extracts by hydrophobic interaction chromatography [PDF]

, 2018
Supercritical fluid extraction (SFE) has been widely used for extracting several valuable phytochemicals, including carotenoids. However, there is a scarcity of works dealing with the purification of SFE extracts.
Abate-Pella, Azmir, Banafsheh, Biehler, Bradford, Brauch, Comim, Dai, de A. Lima, de A. Lima, de Moura, Dutta, Döker, Fiedor, Flickinger, Foo, Ghafoor, Gritti, Gupta, Gómez-Loredo, Jaswir, Jonker, Kassama, Krupa, Langmuir, Lauretani, Liu, Madhujith, Mitra, Moure, Ndhlala, Prado, Qiu, Rodriguez-Amaya, Rodriguez-Amaya, Ruthven, Stahl, Sugiura, Weisz, Şanal   +39 more
core   +1 more source

Complex formation and enantioselectivity studies of triazole fungicide and organophosphorus pesticide enantiomers using capillary electrophoresis [PDF]

, 2008
Several cyclodextrin modified-micellar electrokinetic chromatography (CDMEKC) methods were developed for the successful triazole fungicides separation.
Hermawan, Dadan, Sanagi, Mohd. Marsin, Wan Ibrahim, Wan Aini   +2 more
core  

Isolation of essential oil from different plants and herbs by supercritical fluid extraction [PDF]

, 2012
This is the author’s version of a work that was accepted for publication in Journal of Chromatography A. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms
Fornari, Tiziana, García-Risco, Mónica, Reglero, Guillermo, Vicente, Gonzalo, Vázquez, Erika   +4 more
core   +2 more sources

supercritical fluid chromatography

, 2014
Citation: 'supercritical fluid chromatography' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.S06139 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms ...
openaire   +2 more sources

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