Results 11 to 20 of about 6,772 (172)

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
Lucie Nováková, Sebastiaan Eeltink
doaj   +6 more sources

Lipidomics by Supercritical Fluid Chromatography [PDF]

International Journal of Molecular Sciences, 2015
This review enlightens the role of supercritical fluid chromatography (SFC) in the field of lipid analysis. SFC has been popular in the late 1980s and 1990s before almost disappearing due to the commercial success of liquid chromatography (LC). It is only 20 years later that a regain of interest appeared when new commercial instruments were introduced.
David Touboul, Mario Ollero, Touboul David   +2 more
exaly   +4 more sources

Simultaneous Determination of 20 Nitrogen-Containing Heterocyclic Compounds in Soil by Supercritical Fluid Chromatography–Tandem Mass Spectrometry [PDF]

Molecules
Nitrogen-containing heterocyclic compounds (NHCs) are common environmental pollutants that need to be monitored due to their high toxicity. Typically, gas or liquid chromatography combined with mass spectrometric detection is used for this task. However,
Sergey A. Vakhrameev, Denis V. Ovchinnikov, Nikolay V. Ul’yanovskii, Dmitry S. Kosyakov   +3 more
doaj   +2 more sources

Supercritical fluid extraction of cannabinoids and their analysis by liquid chromatography and supercritical fluid chromatography: A short review

Journal of CO2 Utilization
Extraction of cannabinoids from different parts of the plant matrix is often carried out by various traditional methods based on the use of organic solvents.
Matjaž Rantaša, Gal Slaček, Željko Knez, Maša Knez Marevci   +3 more
doaj   +3 more sources

Supercritical fluid chromatography-mass spectrometry enables simultaneous measurement of all phosphoinositide regioisomers [PDF]

Communications Chemistry, 2022
Phosphoinositide (PIP) species play important roles in a number of cellular events, but the simultaneous quantification of individual PIP species remains challenging using conventional methods.
Yuta Shimanaka, Keiko Matsumoto, Yuki Tanaka, Yuki Ishino, Shenwei Ni, Jun-Lin Guan, Hiroyuki Arai, Nozomu Kono   +7 more
doaj   +2 more sources

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

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   +2 more sources

Comparison of Cuminaldehyde Contents from Cell Suspension Cultures and Seeds of [Bunium persicum (Boiss.) B. Fedtsch.]

Notulae Scientia Biologicae, 2012
The cell suspension culture and seed samples of Bunium persicum were extracted by supercritical fluid, hydrodistillation and solvent methods and analyzed by Gas Chromatography.
Sara KHOSRAVINIA, Seyed Mahdi ZIARATNIA, Abdolreza BAGHERI, Ghadir RAJABZADEH, Seyed Hassan MARASHI   +4 more
doaj   +3 more sources

Analytical and Preparative Separation of Softwood Lignans by Supercritical Fluid Chromatography

Separations, 2023
Lignans are widespread polyphenolic secondary plant metabolites possessing high biological activity. One of the most promising industrial-scale sources of such compounds is coniferous knotwood, containing a large number of polyphenolic compounds.
Nikolay V. Ul’yanovskii, Aleksandra A. Onuchina, Denis V. Ovchinnikov, Anna V. Faleva, Natalia S. Gorbova, Dmitry S. Kosyakov   +5 more
doaj   +1 more source

Advances of supercritical fluid chromatography in lipid profiling

Journal of Pharmaceutical Analysis, 2019
Supercritical fluid chromatography (SFC) meets with great favor due to its high efficiency, low organic solvent consumption, and the specialty for the identification of the isomeric species.
Yang Yang, Yanshan Liang, Jina Yang, Fengying Ye, Ting Zhou, Li Gongke   +5 more
doaj   +1 more source

Underexplored Catalysts as General Structures: Application of Machine Learning Techniques for Reaction‐Specific Datasets

Angewandte Chemie, EarlyView.
Bias‐aware machine learning identified an underexplored imidazolidinone catalyst with broad competitive performance in iminium‐based reactions. Experimental benchmarking shows how data‐driven prioritization can uncover overlooked catalyst scaffolds from sparse and historically biased literature data.
Jiajing Li, Isaiah O. Betinol, Junshan Lai, Soresu Juyo, Jolene P. Reid   +4 more
wiley   +2 more sources