Results 51 to 60 of about 5,412 (216)

Complex formation and enantioselectivity studies of triazole fungicide and organophosphorus pesticide enantiomers using capillary electrophoresis [PDF]

, 2008
Several cyclodextrin modified-micellar electrokinetic chromatography (CDMEKC) methods were developed for the successful triazole fungicides separation.
Hermawan, Dadan, Sanagi, Mohd. Marsin, Wan Ibrahim, Wan Aini   +2 more
core  

Cyclodextrin‐Amino Acid Conjugates: Synthesis and Pharmaceutical Applications

ChemistryEurope, Volume 4, Issue 4, April 2026.
Cyclodextrins (CDs) can be combined with amino acids via host‐guest complexation or by covalent conjugation through various synthetic routes. The chemical modifications introduce structural versatility, multifunctionality, and biocompatibility, which are essential characteristics for designing effective, next‐generation pharmaceutical formulations ...
Andrea Cesari, Nicola Lomuscio, Fabio Bellina   +2 more
wiley   +1 more source

Single Isomer N-Heterocyclic Cyclodextrin Derivatives as Chiral Selectors in Capillary Electrophoresis

Molecules, 2021
In order to better understand the chiral recognition mechanisms of positively charged cyclodextrin (CD) derivatives, the synthesis, the pKa determination by 1H nuclear magnetic resonance (NMR)-pH titration and a comparative chiral capillary ...
Ida Fejős, Eszter Kalydi, Edit Luca Kukk, Mimimorena Seggio, Milo Malanga, Szabolcs Béni   +5 more
doaj   +1 more source

Scope of partial least-squares regression applied to the enantiomeric composition determination of ketoprofen from strongly overlapped chromatographic profiles [PDF]

, 2015
Valuable quantitative information could be obtained from strongly overlapped chromatographic profiles of two enantiomers by using proper chemometric methods.
Agranat, Al-Othman, Allegrini, Ameyibor, Arancibia, Berthod, Bro, Busch, Busch, Carey, Chmielewska, Eto, Fakayode, Fakayode, Grisales, Guo, Görög, Haaland, Hatami, Holík, Ingle, Jin, Kiesswetter, Listgarten, Marini, Mullangi, Olivieri, Olivieri, Purdie, Stinson, Tachibana, Valderrama, Wold, Zeid, Zhou   +34 more
core   +2 more sources

Enantioseparation of chiral phytocannabinoids in medicinal cannabis

Journal of Chromatography B, 2023
The evaluation of the chiral composition of phytocannabinoids in the cannabis plant is particularly important as the pharmacological effects of the (+) and (-) enantiomers of these compounds are completely different. Chromatographic attempts to assess the presence of the minor (+) enantiomers of the main phytocannabinoids, cannabidiolic acid (CBDA) and
Russo, Fabiana, Tolomeo, Francesco, Angela Vandelli, Maria, Biagini, Giuseppe, Laganà, Aldo, Capriotti, Anna Laura, Cerrato, Andrea, Carbone, Luigi, Perrone, Elisabetta, Cavazzini, Alberto, Maiorano, Vincenzo, Gigli, Giuseppe, Cannazza, Giuseppe, Citti, Cinzia   +13 more
openaire   +4 more sources

Determination of the enantiomeric purity of Pemetrexed on the macrocyclic glycopeptides bonded phases [PDF]

, 2016
Исследовано энантиоразделение пеметрекседа на сорбентах с иммобилизованными на поверхности силикагеля макроциклическими гликопептидными антибиотиками.
Ananieva, I. A., Fedorova, I. A., Priporova, A. A., Shapovalova, E. N., Shpigun, O. A., Ананьева, И. А., Припорова, А. А., Федорова, И. А., Шаповалова, Е. Н., Шпигун, О. А.   +9 more
core   +1 more source

Multiple‐Use Microplate Assay for Submicromolar Ultra High‐Throughput Separation of Amines Based on their Degree of Substitution

ChemistryOpen, Volume 15, Issue 4, April 2026.
A reusable microplate platform for ultra‐high‐throughput, submicromolar separation of protonated amines – including alkyl‐, aryl‐, and aralkyl‐types – using a tris(pyridino)‐crown ether selector was introduced; the method enables rapid, zero‐energy, parallel purification fully compatible with automated synthesis workflows.
Panna Vezse, Tünde Tóth, Péter Huszthy, Ádám Golcs   +3 more
wiley   +1 more source

Lipase as a Chiral Selector Immobilised on Carboxylated Single-Walled Carbon Nanotubes and Encapsulated in the Organic Polymer Monolithic Capillary for Nano-High Performance Liquid Chromatography Enantioseparation of Racemic Pharmaceuticals

Molecules, 2023
Herein, we report the preparation of lipase immobilised on single-walled carbon nanotubes (SWCNTs) as an enantioselector for capillary monolithic columns and their application in the chiral separation of racemic pharmaceuticals. The columns were prepared
Ali Fouad, Frady G. Adly, Moustafa K. Soltan, Ashraf Ghanem   +3 more
doaj   +1 more source

Enantiopure O-Ethyl Phenylphosphonothioic Acid : A Solvating Agent for the Determination of Enantiomeric Excesses [PDF]

, 2014
An improved method, which is highly reproducible, was developed for the enantioseparation of racemic O-ethyl phenylphosphonothioic acid (1a) with brucine by introducing seeding to a supersaturated solution of the diastereomeric salt mixture.
1316, 1317, 1318, 1319, 1320, 1321, Hirao, Shotaro, Matsumoto, Kazushige, Nishiwaki, Nagatoshi, Saigo, Kazuhiko, Sawayama, Jun, Sugimoto, Ryuichi   +11 more
core   +2 more sources

Enantioseparation by Sonochromatography

Bulletin of the Korean Chemical Society, 2006
Although chiral separation has been one of the main topics of chromatographic practice for over twenty-five years, it still presents many difficulties. In this work, the ultrasonic dependence of chiral resolution was investigated at various temperatures to improve resolution and reduce analysis time.
openaire   +2 more sources