Results 1 to 10 of about 10,407 (232)

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

Supercritical Fluid Chromatography in Bioanalysis–A Review

Journal of Separation Science
ABSTRACTIn the last decade, the instrumentation improvements in supercritical fluid chromatography (SFC) and the hyphenation to mass spectrometry (MS), have increased the SFC acceptance between scientists, becoming today a valuable tool in analytical chemistry.
Toribio Recio, Laura, Martín Gómez, María Teresa, Bernal del Nozal, José   +2 more
openaire   +3 more sources

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

Subcritical Fluid Chromatography at Sub-Ambient Temperatures for the Chiral Resolution of Ketamine Metabolites with Rapid-Onset Antidepressant Effects

Molecules, 2019
Chiral metabolites of ketamine exerting rapid-onset yet sustained antidepressant effects may be marketed directly in the future, but require chemo- and enantio-selective chromatographic methods for quality assurance and control.
Robert K. Hofstetter, Felix Potlitz, Lukas Schulig, Simon Kim, Mahmoud Hasan, Andreas Link   +5 more
doaj   +1 more source

Fast Analytical Separation of Selected Agricultural Pesticides Using Supercritical Fluid Chromatography

Separations
Pesticides are chemical substances widely used to control, prevent, or eliminate pests in agriculture, gardening, and other sectors. However, their use poses risks to human health, and recent regulatory efforts have focused on minimizing exposure and ...
Ana Jano, Manuel Badiola, Ana M. Ares, José Bernal, María Teresa Martín, Laura Toribio, Adrián Fuente-Ballesteros   +6 more
doaj   +1 more source

Widely-targeted quantitative lipidomics method by supercritical fluid chromatography triple quadrupole mass spectrometry[S]

Journal of Lipid Research, 2018
Lipidomics, the mass spectrometry-based comprehensive analysis of lipids, has attracted attention as an analytical approach to provide novel insight into lipid metabolism and to search for biomarkers.
Hiroaki Takeda, Yoshihiro Izumi, Masatomo Takahashi, Thanai Paxton, Shohei Tamura, Tomonari Koike, Ying Yu, Noriko Kato, Katsutoshi Nagase, Masashi Shiomi, Takeshi Bamba   +10 more
doaj   +1 more source

Determination of Optical Purity of Lactic Acid-Based Chiral Liquid Crystals and Corresponding Building Blocks by Chiral High-Performance Liquid Chromatography and Supercritical Fluid Chromatography

Molecules, 2019
Liquid crystals (LCs) are among the most prominent materials of the current information age, mainly due to their well-known application in liquid crystal displays (LCDs).
Anna Poryvai, Terezia Vojtylová-Jurkovičová, Michal Šmahel, Natalie Kolderová, Petra Tomášková, David Sýkora, Michal Kohout   +6 more
doaj   +1 more source

Thermodynamic Aspects of Supercritical Fluids Processing: Applications of Polymers and Wastes Treatment Aspects thermodynamiques des procédés mettant en oeuvre des fluides supercritiques : applications aux traitements des polymères et des déchets

Oil & Gas Science and Technology, 2006
Supercritical fluid processes are of increasing interest for many fields : in supercritical fluid separation (petroleum-chemistry separation and purification, food industry) and supercritical fluid chromatography (analytical and preparative separation ...
Beslin P., Cansell F., Rey S.
doaj   +1 more source

Capillary supercritical fluid chromatography [PDF]

Analytical Chemistry, 1981
Milos Novotny, Stephen R. Springston, Paul A. Peaden, John C. Fjeldsted, Milton L. Lee   +4 more
openaire   +1 more source