alexa Enantioselective determination of alprenolol in human plasma by liquid chromatography with tandem mass spectrometry using cellobiohydrolase chiral stationary phases.
Chemical Engineering

Chemical Engineering

Journal of Chromatography & Separation Techniques

Author(s): Jiang H, Jiang X, Ji QC

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Abstract A fast, sensitive, and enantioselective LC-MS/MS bioanalytical method was developed and validated for the direct determination of individual alprenolol enantiomers in human plasma using cellobiohydrolase (CBH) chiral stationary phases (CSP) along with supported liquid extraction (SLE) procedures. Complete baseline separation of enantiomeric alprenolol was achieved within 2 min in reversed phase chromatography at 0.9 ml/min. SLE in a 96-well plate format was used for sample extraction. The method validation was conducted over the curve range of 0.500-500 ng/ml for each alprenolol enantiomer using 0.0500 ml of plasma sample. The intra- and inter-day precision and accuracy of the quality control samples at low, medium, and high concentration levels showed < or = 7.3\% relative standard deviation (RSD) and -6.2 to 8.0\% relative error (RE) for both alprenolol enantiomers. This article was published in J Chromatogr B Analyt Technol Biomed Life Sci and referenced in Journal of Chromatography & Separation Techniques

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