Results 141 to 150 of about 56,768 (286)

Determination of Enantiomers of Deschloroketamine and Its Metabolites in Wistar Rat Brains. [PDF]

J Sep Sci
Paškanová N, Hrubá V, Frühauf P, Jurásek B, Kuchař M, Řezanka P, Kohout M.   +6 more
europepmc   +1 more source

Determination of enantiomers of amino acids by HPLC

, 2010
This Bachelor's thesis deals with determination of amino acids enantiomers, namely alanine in the experimental part, by high performance liquid chromatography using chiral stationary phases based on teicoplanin.
Michalčíková, Regina
core  

An Investigation Into the Yields of 3,4‐Methylenedioxyphenyl‐2‐propanone (MDP2P) From Glycidate Pre‐Precursors

Drug Testing and Analysis, EarlyView.
Hydrolysis of the glycidate pre‐precursors MMDMG and EMDMG was evaluated for MDP2P production. Acid hydrolysis of MMDMG (HCl, 100°C, 18 h) yielded the highest MDP2P recovery (79%), whereas base hydrolysis produced only slightly lower yields (73%), demonstrating both pathways are effective routes to this key MDMA precursor.
Alexandra L. Mercieca, Ella S. Schuett, Andrew M. McDonagh, Shanlin Fu, Morgan Alonzo   +4 more
wiley   +1 more source

Methamphetamine Enantiomers: From Chemical Synthesis to Biological Fate. [PDF]

Chirality
do Espírito Santo LP, de Carvalho RL, Sad JA, Dos Santos PHC, Domingues RS, de Azevedo Cardoso G, Enes KB, Goulart GAC, de Castro Lourenço das Neves M, de Fátima Â.   +9 more
europepmc   +1 more source

Retrospective Study on the Power and Interpretation of Chiral Amphetamine Analysis in Hair for Forensic Applications

Drug Testing and Analysis, EarlyView.
A decision model for the interpretation of chiral amphetamine analysis in hair was established based on the enantiomeric fraction (EF) of (S)‐amphetamine in authentic hair samples. Two chiral analysis methods (indirect/direct) were consecutively applied to distinguish between illicit and therapeutic amphetamine use in forensic cases.
Liesl K. Janssens, Milena M. Madry, Andrea E. Steuer, Tina M. Binz   +3 more
wiley   +1 more source

Optical and Chiroptical Properties of a Green‐Emitting Tb(III) Complex Embedded in Silica Nanoparticles

European Journal of Inorganic Chemistry, EarlyView.
The SiO2 matrix improves the luminescence efficiency of the chiral Tb(bpcd)Cl complex by mitigating multiphonon relaxation, without compromising its chiroptical response. A spectroscopic investigation of water‐soluble and chiral Tb(III) complexes with N,N′‐bis(2‐pyridylmethyl)‐trans−1,2‐diaminocyclohexane‐N,N′‐diacetic acid, embedded in water ...
Silvia Ruggieri, Lorenzo Arrico, Francesco Zinna, Lorenzo Di Bari, Kamila Maciejewska, Mirosław Karbowiak, Fabio Piccinelli   +6 more
wiley   +1 more source

Recent Advances in the Enantiomeric Separation of Tropane Alkaloids by Liquid Chromatography: Analytical Strategies and Applications in Pharmaceutical, Biological, and Food Samples. [PDF]

Toxins (Basel)
Vera-Baquero FL, González-Gómez L, Sierra I, Morante-Zarcero S.   +3 more
europepmc   +1 more source

SEPARATION OF ENANTIOMERS BY MICROCOLUMN LIQUID-CHROMATOGRAPHY WITH METHYLATED BETA-CYCLODEXTRIN AS MOBILE-PHASE ADDITIVE

, 1994
Enantiomers can be separated by microcolumn liquid chromatography with methylated beta-cyclodextrin (beta-CD) as a mobile phase additive. Effects of the mobile phase composition on the retention behaviour of the analytes were examined.
胡荣宗, TAKEUCHI,T, JIN,JY, HU,RZ, MIWA,T   +4 more
core  

Polymerization of Heteroleptic Amphiphilic Osmium(II) Complexes at the Air/Water Interface: Attempts Toward Nanoarchitectonics in Form of Molecular Textiles

European Journal of Inorganic Chemistry, EarlyView.
Amphiphilic heteroleptic osmium(II) complexes enable a bottom‐up route toward molecular textiles via interfacial polymerization. Confined to a single monolayer, noncontact atomic force microscopy reveals predominantly linear polymers with partial branching.
Luise J. Sokoliuk, Antoine Hinaut, Salome L. Heim, Laurent Marot, Olaf Fuhr, Dieter Fenske, Ernst Meyer, Marcel Mayor   +7 more
wiley   +1 more source

Enantiomer-Resolved Biological Profiling and Chiral Developability Assessment of Novel Naphthylethyl Thioureas. [PDF]

Pharmaceutics
Molnár G, Simon B, Mirzahosseini A, Dobó M, Dombi G, Fiser B, Mhammad A, Bárdos V, Szolláth R, Szabó ZI, Marton A, Varga K, Tábi T, Boldizsár I, Horváth A, Dobay O, Bősze S, Balogh GT, Tóth G.   +18 more
europepmc   +1 more source