Development of a validated high-throughput LC-ESI-MS method for determination of sirolimus on dried blood spots
BIOMEDICAL CHROMATOGRAPHY(2010)
摘要
A high-throughput liquid chromatography-electrospray ionization mass spectrometric (LC-ESI-MS) method for screening of sirolimus on dried blood spots (DBS) was developed and validated. It involves solvent extraction of a punch of DBS followed by reversed-phase LC on a relatively new monolithic column consisting of a silica rod with bimodal pore structure and detection by ESI-MS. The run time was less than 3 min with a very low backpressure at a flow rate of 0.5 mL/min. The method can analyze more than 100 samples in an 8 h working day, including sample preparation. The assay was linear from 1 to 100 ng/mL. The mean recovery was 92.42%. The mean inter-day and intra-day precisions were 1.23 and 1.41%, respectively. The developed method is simple, rapid and useful for clinical applications. Copyright (C) 2010 John Wiley & Sons, Ltd.
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关键词
sirolimus,dried blood spots,monolithic column,high-throughput,LC-ESI-MS
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