Results 41 to 50 of about 2,499 (191)

Enantiomeric separation of organophosphorus pesticides by capillary electrophoresis. Application to the determination of malathion in water samples after preconcentration by off-line solid-phase extraction [PDF]

, 2005
The separation of the enantiomers of a group of organophosphorus pesticides (OPs) has been investigated by electrokinetic chromatography (EKC) using different anionic cyclodextrins as chiral selectors. The use of a 25 mM Tris buffer (pH 7.0), 20 mM in CM-
Blanco, Elisa, García Ruiz, Carmen, Marina Alegre, María Luisa, Puerta, Ángel, Sanz Medel, Alfredo, Álvarez Llamas, Gloria   +5 more
core   +2 more sources

Ion-pair chromatographic attribute in the retention of ammonium ion on a crown ether-based and a polysaccharide-based chiral stationary phases. Some mobile phase additives compatible with liquid chromatography-electrospray ionization-mass spectrometry

Journal of Chromatography Open
The design of the mobile phase additive useful in HPLC analysis on two types of chiral stationary phases, one based on chiral crown ether, and another based on polysaccharide derivative, was developed. CROWNPAK® CR-I, the chiral stationary phase bearing (
Tohru Shibata, Satoshi Shinkura, Atsushi Ohnishi, Akari Yamamoto, Yuichi Fujioka, Nobuhiro Kawahara   +5 more
doaj   +1 more source

Core-Shell Columns in High-Performance Liquid Chromatography: Food Analysis Applications [PDF]

, 2016
Theincreased separation efficiency provided by the newtechnology of column packed with core-shell particles in high-performance liquid chromatography (HPLC) has resulted in their widespread diffusion in several analytical fields: from pharmaceutical ...
Preti, Raffaella
core   +3 more sources

Predicting enantioseparations on polysaccharide-based stationary phases using achiral and chiral molecular descriptors

Journal of Chromatography Open
Achiral and chiral molecular descriptors were used to build models that predict the global retention of chiral molecules on the one hand, and their enantioselectivity, separation and elution sequence on the other.
Pieter De Gauquier, Jordy Peeters, Fardine Ameli, Emmanuelle Lipka, Kenno Vanommeslaeghe, Yvan Vander Heyden, Debby Mangelings   +6 more
doaj   +1 more source

Enzymatic and chromatographic resolution procedures applied to the synthesis of the phosphoproline enantiomers [PDF]

, 2015
Financial support to this work was provided by Ministerio de Economía y Competitividad–FEDER (grants CTQ2011-24237,CTQ2013-44153-P, and CTQ2013-40855 ...
Arizpe, Alicia, Cativiela, Carlos, Gotor Fernández, Vicente, Gotor Santamaría, Vicente Miguel, Jiménez, Ana I., Pueyo, María J., Rodríguez Mata, María, Sayago García, Francisco Javier   +7 more
core   +2 more sources

Advancements in Mass Spectrometry‐Based Glycomics in Food and Nutritional Science

Mass Spectrometry Reviews, EarlyView.
ABSTRACT This review highlights advancements in mass spectrometry (MS)‐based glycomics in food and nutritional science. Carbohydrates, which are vital for human health, exhibit complex structures, making their analysis challenging. MS has become an indispensable tool for elucidating the structures of carbohydrates, including glycans, through soft ...
JaeHui Song, HyunJi Lee, Youngshik Choe, Hyeyoung Lee   +3 more
wiley   +1 more source

Characterization of exopolysaccharides produced by seven biofilm-forming cyanobacterial strains for biotechnological applications [PDF]

, 2013
The molecular identification of seven biofilmforming cyanobacteria and the characterization of their exopolysaccharides were made and considered in terms of potential biotechnological applications.
Bruno, L, De Philippis, R, Di Pippo, F, Ellwood, NTW, Gismondi, A, Magni, P, Rossi, F   +6 more
core   +1 more source

Chiral Molecules Induce Enantiomorphic Lattice Helicity in Chiral 0D Tin Bromide Crystals

Angewandte Chemie, Volume 137, Issue 43, October 20, 2025.
Chiral (R‐MBA)2SnBr6 and (S‐MBA)2SnBr6 metal halides crystallize in enantiomorphic helical space groups P61 and P65, respectively. The helical orientation of chiral molecules in the lattice arises due to strong N─H···Br and C─H···π interactions and is visualized via sixfold symmetry.
Ramavath Babu, Haoyuan Xu, Berta Covelo, Ignacio Pérez‐Juste, Julian E. Heger, Nasrin Solhtalab, Zelin Li, Longfeng Zhong, Xiaowen Hu, Felix Deschler, Peter Müller‐Buschbaum, Xiao‐Fang Jiang, Sergio Gómez‐Graña, Lakshminarayana Polavarapu   +13 more
wiley   +2 more sources

Sample Preparation and Separation of Lignans by Liquid Chromatography

Journal of Separation Science, Volume 49, Issue 5, May 2026.
ABSTRACT Lignans are important phytochemicals found mostly in the resins of coniferous trees, but are also introduced into human diets through foods such as sesame seeds and extra‐virgin olive oil. They are pharmacologically interesting mainly because of their antioxidant activities, and they have also been shown to have cytotoxic and antimicrobial ...
Miikka Paloluoto, Susanne K. Wiedmer
wiley   +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