Results 21 to 30 of about 1,667,790 (189)

Separation Of Methionine Enantiomers By Using Teicoplanin And Cyclofructan Columns

Nova Biotechnologica et Chimica, 2015
Methionine is a naturally occurring amino acid. Its enantiomeric separation by using high performance liquid chromatography on various types of chiral stationary phases was studied.
Hroboňová Katarína, Deáková Zuzana, Moravčík Jakub, Lehotay Jozef, Armstrong Daniel W., Lomenová Anna   +5 more
doaj   +1 more source

Enantioselective Liquid Chromatographic Separations Using Macrocyclic Glycopeptide-Based Chiral Selectors

Molecules, 2021
Numerous chemical compounds of high practical importance, such as drugs, fertilizers, and food additives are being commercialized as racemic mixtures, although in most cases only one of the isomers possesses the desirable properties. As our understanding
Róbert Berkecz, Dániel Tanács, Antal Péter, István Ilisz   +3 more
doaj   +1 more source

Preparation and characterization of poly(l-phenylalanine) chiral stationary phases with varying peptide length. [PDF]

, 2008
Three new chiral stationary phases with different lengths of l-phenylalanine peptide were prepared by solid-phase synthesis with tert-butoxycarbonyl (Boc)-l-phenylalanine on silica.
Ohba, Yoshihito, Kuroda, Naotaka, Ohyama, Kaname, Wada, Mitsuhiro, Nakashima, Kenichiro, Oyamada, Kana, Kishikawa, Naoya, Maki, Toshihide   +7 more
core   +1 more source

Cromatografia gasosa quiral na resolução de enantiômeros envolvidos em flavours de frutas

Química Nova, 2014
This work addresses the use of chiral gas chromatography in resolving optically active stereoisomers and racemates found in fruit flavours. It presents the types of chiral selectors applied to terpene-derived metal coordination compounds, polysiloxane ...
Alexandre Porte, Luciana H. Maia Porte, Luciana M. de Oliveira   +2 more
doaj   +1 more source

Enantioseparation, quantification, molecular docking and molecular dynamics study of five β-adrenergic blockers on Lux-Cellulose-2 column

BMC Chemistry, 2023
Enantioseparation of five β-adrenergic blockers was studied using two mobile phases on a cellulose tris(3‐chloro‐4‐methylphenylcarbamate) (Lux-Cellulose-2) chiral column in normal phase mode.
Ola Ahmed Saleh, Amr Mohamed Badawey, Hassan Y. Aboul-Enein, Marwa Ahmed Fouad   +3 more
doaj   +1 more source

Enantioseparation of novel anti-inflammatory chiral sulfoxides with two cellulose dichlorophenylcarbamate-based chiral stationary phases and polar-organic mobile phase(s)

Journal of Chromatography Open, 2021
Chiral sulfoxides represent a class of substances of great importance in many fields, including medicinal chemistry dealing with the synthesis of novel cyclooxygenase-2 (COX-2) inhibiting/NO donors.
Ina Varfaj, Alessandro Di Michele, Federica Ianni, Mario Saletti, Maurizio Anzini, Carolina Barola, Bazan Chankvetadze, Roccaldo Sardella, Andrea Carotti   +8 more
doaj   +1 more source

Analysis of Enantiomers in Products of Food Interest

Molecules, 2019
The separation of enantiomers has been started in the past and continues to be a topic of great interest in various fields of research, mainly because these compounds could be involved in biological processes such as, for example, those related to human ...
Chiara Fanali, Giovanni D’Orazio, Alessandra Gentili, Salvatore Fanali   +3 more
doaj   +1 more source

Current trends in the development of polymer‐based monolithic stationary phases

Analytical Science Advances, 2022
This review focuses on the development and applications of organic polymer monoliths, with special attention to the literature published in 2021. The latest protocols in the preparation of polymer monoliths are discussed.
Martina Nechvátalová, Jiří Urban
doaj   +1 more source

Stationary phases based on the nanoparticles for pharmaceutical and biomolecule separations [PDF]

Nanochemistry Research, 2021
Because of impossibility to achieve a general column for separation purposes, columns must be amended in order to acquire specific chemical characteristics such as hydrophobic, hydrophilic or ionic interactions.
Forough Karami, Somayeh Karami
doaj   +1 more source

HPLC Enantioseparation of Rigid Chiral Probes with Central, Axial, Helical, and Planar Stereogenicity on an Amylose (3,5-Dimethylphenylcarbamate) Chiral Stationary Phase

Molecules, 2022
The chiral resolving ability of the commercially available amylose (3,5-dimethylphenylcarbamate)-based chiral stationary phase (CSP) toward four chiral probes representative of four kinds of stereogenicity (central, axial, helical, and planar) was ...
Simona Rizzo, Tiziana Benincori, Francesca Fontana, Dario Pasini, Roberto Cirilli   +4 more
doaj   +1 more source