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Showing 31-41 of 41 results for "11022AST" within Papers

Chiral analysis of metoprolol and two of its metabolites, α-hydroxymetoprolol and deaminated metoprolol, in wastewater using liquid chromatography-tandem mass spectrometry.

Victoria K H Barclay et al.

Journal of chromatography. A, 1269, 208-217 (2012-10-24)

A LC-MS/MS method for the chiral separation of metoprolol and two of its main metabolites, α-hydroxymetoprolol (α-OH-Met) and deaminated metoprolol (COOH-Met), in environmental water samples has been developed. The target bases, metoprolol and α-OH-Met, as well as the acidic metabolite

Enantioselective quantification of fluoxetine and norfluoxetine by HPLC in wastewater effluents.

Ana R Ribeiro et al.

Chemosphere, 95, 589-596 (2013-11-05)

Microbial degradation is the most important process to remove organic pollutants in Waste Water Treatment Plants. Regarding chiral compounds this process is normally enantioselective and needs the suitable analytical methodology to follow the removal of both enantiomers in an accurate

Enantioseparation and chiral recognition mechanism of new chiral derivatives of xanthones on macrocyclic antibiotic stationary phases.

Carla Fernandes et al.

Journal of chromatography. A, 1241, 60-68 (2012-05-04)

A chiral HPLC method using four macrocyclic antibiotic chiral stationary phases (CSPs) has been investigated for determination of the enantiomeric purity of fourteen new chiral derivatives of xanthones (CDXs). The separations were performed with the CSPs Chirobiotic T, Chirobiotic TAG

Screening approach, optimisation and scale-up for chiral liquid chromatography of cathinones.

R Wimal H Perera et al.

Journal of chromatography. A, 1269, 189-197 (2012-11-24)

Screening approaches adopted in pharmaceutical companies for chiral LC method development may be quite complicated and sophisticated in order to guarantee a high success rate. However in other environments it may be of more value to assess how simple a

Effect of chromatographic conditions on liquid chromatographic chiral separation of terbutaline and salbutamol on Chirobiotic V column.

Hisham Hashem et al.

Journal of chromatography. A, 1218(38), 6727-6731 (2011-08-23)

In this study, a method for enantioseparation of terbutaline and salbutamol was established using Chirobiotic V column as a stationary phase. Polar ionic mode applying mobile phase containing ammonium nitrate in 100% ethanol, pH 5.1 was found to give the

High-performance liquid chromatographic enantioseparation of bicalutamide and its related compounds.

Roland Török et al.

Journal of chromatography. A, 1098(1-2), 75-81 (2005-11-30)

Direct high-performance liquid chromatographic methods were developed for the enantioseparation of (R,S)-bicalutamide (1) and its analogs (+/-)-3-chloro-N-(4-cyano-3-(trifluoromethyl)phenyl)-2-hydroxy-2-methylpropanamide (2), (+/-)-N-(4-cyano-3-(trifluoro-methyl)phenyl)-2-methyloxirane-2-carboxamide (3), (+/-)-4-fluorophenylsulfonyl-2-hydroxy-2-methylpropionic acid (4) and (+/-)-3-hydroxy-N-(4-cyano-3-(trifluoromethyl)phenyl)-2-hydroxy-2-methylpropanamide (5). The methods involved the use of a cellulose-based Chiralcel OD-H, macrocyclic glycopeptide-based Chirobiotic T

Chiral stability-indicating HPLC method for analysis of arotinolol in pharmaceutical formulation and human plasma

Sultan, Maha A., et al.

Arabian Journal of Chemistry, 3 (3), 147-153 (2010)

[Enantioselective determinination of R-warfarin/S-warfarin in human plasma using liquid chromatography-tandem mass spectrometry and its application in a drug-drug interaction study].

Shu Jin et al.

Yao xue xue bao = Acta pharmaceutica Sinica, 47(1), 105-109 (2012-04-12)

To study the drug-drug interaction of morinidazole and warfarin and its application, a sensitive and rapid liquid chromatography-tandem mass spectrometric (LC-MS/MS) method was developed for the determination of R-warfarin/S-warfarin in human plasma. In a random, two-period crossover study, 12 healthy

Stereoselective determination of venlafaxine and its three demethylated metabolites in human plasma and whole blood by liquid chromatography with electrospray tandem mass spectrometric detection and solid phase extraction.

Maria Kingbäck et al.

Journal of pharmaceutical and biomedical analysis, 53(3), 583-590 (2010-05-04)

A stereoselective method is described for simultaneous determination of the S- and R-enantiomers of venlafaxine and its three demethylated metabolites in human plasma and whole blood samples. This validated method involved LC/MS/MS with positive electrospray ionization and solid phase extraction.

Development and validation of HPLC methods for the enantioselective analysis of bambuterol and albuterol.

A Bartolincić et al.

Journal of pharmaceutical and biomedical analysis, 36(5), 1003-1010 (2004-12-29)

Suitable HPLC methods for the direct separation of bambuterol and albuterol enantiomers were developed. The enantioseparation was tested on numerous commercial chiral HPLC columns. For bambuterol the most convenient separation was determined on amylose Chiralpak AD column, and for albuterol

Enantiomeric impurities in chiral catalysts, auxiliaries, and synthons used in enantioselective syntheses. Part 4

Qui, Haiziao, et al.

Tetrahedron Asymmetry, 24 (18), 1134-1141 (2013)

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