نتایج جستجو برای: enantiomer separation
تعداد نتایج: 125205 فیلتر نتایج به سال:
Chiroptical spectroscopy is one of the most developing areas of chiral analysis which role has been enhanced in recent years. In the thesis new applications of circular dichroism (CD) and optical rotatory dispersion (ORD) methods are presented via some examples. A quick and accurate CD spectroscopic method was developed for the simultaneous determination of ethisterone and its delta5-isomer (de...
Carvedilol is administered as a racemic mixture of the R(+)- and S(-)-enantiomers, although it was demonstrated that the two enantiomers exhibit different pharmacological effects and stereoselective pharmacokinetics. The aim of this study was the evaluation of several native and derivatized cyclodextrines as chiral selectors for the separation of carvedilol enantiomers. Stereoselective interact...
A sensitive, simple, specific, precise, accurate and rugged method for the assay and determination of enantiomeric purity of S-(-)-9-fluoro-6,7-dihydro-8-(4-hydroxypiperidin-1-yl)-5-methyl-1-oxo-1H,5H-benzo[i,j]quinolizine-2-carboxylic acid L-arginine salt tetrahydrate (WCK 771) in bulk drug has been developed. The method is RP-HPLC using endcapped C-18 stationary phase and chiral mobile phase....
Enantiomer Separation of α-Amino Acid Esters as Nitrobenzoxadiazole Derivatives Using Chiral Columns
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