Results 21 to 30 of about 19,784 (260)

Chiral Separations of Pyrethroic Acids Using Cyclodextrin Selectors

Molecules, 2022
Pyrethroid insecticides are broadly used. They have low toxicity for warm-blooded living creatures, but high toxicity for both insects and fish. Therefore, it is important to reduce the environmental impact of pyrethroids.
Zoltán Juvancz, Rita Bodáné-Kendrovics, Zita Laczkó, Róbert Iványi, Erzsébet Varga   +4 more
doaj   +1 more source

Study of Chemical Composition and Evaluation of Anti-hypertensive Effect of A Fixed Oil Extracted from Linum usitatissimum grains

Journal of Food and Pharmaceutical Sciences
Globally grown flax seed is regarded as an oilseed with numerous medicinal and health are the outcomes of the physico-chemical analyses: pH value: 0.476; saponification index: 168.3; KOH/g: 28.05; peroxide index: 174; density: 0.951; refractive index: 1 ...
Oulad Ali Halima, Mebarka, Nasser Belboukhari, Khaled Sekkoum, Khawter   +4 more
doaj   +1 more source

Review on the enantioselective separation and environmental determination of chiral contaminates

浙江大学学报. 农业与生命科学版, 2002
Approaches to the chromatographic (GC, HPLC, CE, SFC and TLC) enantiomer separation and determination of chiral contaminates are reviewed. The enanriomers of chiral contaminates are selectively degradation and interaction in soil and water environment ...
LU Hang, MA Yun, LIU Hui-jun, LIU wei-ping   +3 more
doaj   +1 more source

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

Rapid separation of warfarin enantiomers on polysaccharide chiral stationary phases with a chiral recognition mechanism by computational approaches

Journal of Taibah University for Science
The present article describes fast, inexpensive and reproducible chiral-HPLC separation of warfarin enantiomers with Chiralpak IA, Chiralpak AS-3R and Chiralcel OD-RH CSPs. The separation factors for these CSPs ranged from 1.33−2.50, 0.54−2.23, and 2.23;
Marwa Ghouizi, Iqbal Hussain, Khaled Sekkoum, Nasser Belboukhari, Khairedine Kraim, Mouslim Messali, Imran Ali   +6 more
doaj   +1 more source

Rotaxanes with dynamic mechanical chirality: Systematic studies on synthesis, enantiomer separation, racemization, and chiral-prochiral interconversion

Frontiers in Chemistry, 2022
Dynamic mechanical chirality of [2]rotaxane consisting of a Cs symmetric wheel and a C2v symmetric axle is discussed via the synthesis, enantiomer separation, racemization, and chiral-prochiral interconversion.
Fumitaka Ishiwari, Toshikazu Takata, Toshikazu Takata, Toshikazu Takata   +3 more
doaj   +1 more source

Chemistry and characterization of high value acyclic alcohols in Ocimum africanum Lour. hybrids and their biological potential

Industrial Crops and Products
Ocimum africanum Lour., a lemon-scented, short-lived annual basil is well known for its high citral content and essential oil yield. Besides its usages as food flavouring agent, fragrance intermediates are the other noteworthy applications.
Kamlesh Yadav, Yatish Pant, Shubham Srivatava, Divya Bhatt, R.K. Lal, Akansha Dwivedi, Anand Mishra, D.U. Bawankule, Manoj Semwal, C.S. Chanotiya   +9 more
doaj   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Chiral Selectors in Capillary Electrophoresis: Trends during 2017–2018

Molecules, 2019
Chiral separation is an important process in the chemical and pharmaceutical industries. From the analytical chemistry perspective, chiral separation is required for assessing the fit-for-purpose and the safety of chemical products.
Raymond B. Yu, Joselito P. Quirino
doaj   +1 more source

Metal–Organic Frameworks-Based Analytical Devices for Chiral Sensing and Separations: A Review (2012–2022)

Chemosensors, 2022
Metal–organic frameworks (MOFs), as high-surface-area materials, have shown promise in various areas of application, such as chiral sensing and separation, due to their flexibility in design and organized porous cages.
Soodabeh Hassanpour, Navid Niaei, Jan Petr   +2 more
doaj   +1 more source