Results 41 to 50 of about 2,185,989 (175)

First Isolation of Enantiopure Perfluoroalkylated Sulfilimines and Sulfoximines

CHIMIA, 2014
Mono-, di- and trifluoromethyl sulfilimines and sulfoximines have been isolated for the first time in enantiopure form by separation of the racemate by supercritical fluid chromatography.
Thanh-Nghi Le, Emilie Kolodziej, Patrick Diter, Bruce Pégot, Chloée Bournaud, Martial Toffano, Régis Guilot, Giang Vo-Thanh, Emmanuel Magnier   +8 more
doaj   +1 more source

Exploring the Potential of Supercritical Fluid Extraction of Matricaria chamomilla White Ray Florets as a Source of Bioactive (Cosmetic) Ingredients

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, Marta Berga, Liene Kienkas, Martins Boroduskis, Anna Ramata-Stunda, Dace Reihmane, Maris Senkovs, Gundars Skudrins, Ilva Nakurte   +8 more
doaj   +1 more source

Accelerating green heterocyclic synthesis: Convergence of AI, automation, and sustainable chemistry

Bulletin of the Korean Chemical Society, EarlyView.
Green heterocyclic synthesis and data‐driven tools such as AI, high‐throughput experimentation, continuous flow, and self‐driving laboratories have developed largely in parallel. This review connects them and asks how green metrics such as E‐factor and PMI might serve as explicit optimization targets rather than post‐hoc measures, toward sustainable ...
Noor Aisyah Ahmad Shah, Amirreza Mottafegh, Su‐Hyun Yoo, Jongwoon Kim, Minseon Byeon, Juhwan Noh, Yea‐Lee Lee, Jin Suk Myung, Gwang‐Noh Ahn   +8 more
wiley   +1 more source

Electrodeposition from supercritical fluids

, 2014
Recent studies have shown that it is possible to electrodeposit a range of materials, such as Cu, Ag and Ge, from various supercritical fluids, including hydrofluorocarbons and mixtures of CO2 with suitable co-solvents. In this perspective we discuss the
George, M.W., Hector, A., Reid, G., Bartlett, P., Smith, D.C., Cook, D.A., Levason, W., Ke, J., Zhang, W.   +8 more
core   +1 more source

Quantitative Capillary Supercritical Fluid Chromatography and Supercritical Fluid Extraction of Basic Drugs of Abuse

CHIMIA, 1992
Capillary SFC of basic drugs of abuse have been studied using two different columns, and the results were compared with GC. These results have proved the ability of supercritical CO2 to solubilize and extract basic drugs of interest.
Patrick Edder, Werner Haerdi, Jean-luc Veuthey, Christian Staub   +3 more
doaj   +2 more sources

When Two Dimensions Matter: A Critical Review of Recent Comprehensive Two‐Dimensional Gas Chromatography Applications in Food Analysis

ChemFoodChem, EarlyView.
Comprehensive two‐dimensional gas chromatography (GC×GC) is gaining importance in food analysis, particularly for volatile and aroma‐related compounds. This review examines recent applications across plant‐, animal‐, and other food matrices, revealing trends in sample preparation, column selection, modulation and detection, while highlighting ...
Ana Jano, Alba Bautista, Ana M. Ares, José Bernal   +3 more
wiley   +1 more source

Characterization of phyto-components with antimicrobial traits in supercritical carbon dioxide and soxhlet Prosopis juliflora leaves extract using GC-MS

Scientific Reports, 2023
This study aimed to screen the bioactive compounds from Prosopis juliflora leaf supercritical fluid extract and to assess its antimicrobial properties. Supercritical carbon dioxide and Soxhlet methods were used for extraction.
Nagaraj M. Naik, M. Krishnaveni, M. Mahadevswamy, M. Bheemanna, Udaykumar Nidoni, Vasant Kumar, K. Tejashri   +6 more
doaj   +1 more source

Sequential Pressurized Liquid Extraction of Food Matrices: Fractionation, Selectivity, and Scale‐Up

ChemFoodChem, EarlyView.
Sequential pressurized liquid extraction separates food‐processing side streams into chemically distinct fractions by changing solvent polarity and operating conditions across stages. Lipophilic and phenolic compounds are recovered selectively, while co‐extraction is reduced.
Derya Ozalp Unal
wiley   +1 more source

The enantioselective potential of amylose tris(3‑chloro-5-methylphenyl carbamate)-based chiral stationary phase in sub/supercritical fluid and normal phase liquid chromatography

Journal of Chromatography Open
The enantioselective potential of amylose tris (3‑chloro-5-methylphenylcarbamate) based chiral stationary phase in sub/supercritical fluid chromatography and normal phase liquid chromatography was evaluated.
Denisa Folprechtová, Patricia Maestro Martínez, Květa Kalíková   +2 more
doaj   +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