کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1223695 | 967898 | 2007 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Analysis of carvedilol in human plasma using hydrophilic interaction liquid chromatography with tandem mass spectrometry Analysis of carvedilol in human plasma using hydrophilic interaction liquid chromatography with tandem mass spectrometry](/preview/png/1223695.png)
A rapid, sensitive and selective method for the determination of carvedilol in human plasma was developed using hydrophilic interaction liquid chromatography with tandem mass spectrometry (HILIC–MS/MS). Carvedilol and cisapride (internal standard) were extracted from human plasma with methyl tert-butyl ether at basic pH and analyzed on an Atlantis HILIC Silica column with the mobile phase of acetonitrile–ammonium formate (50 mM, pH 4.5) (90:10, v/v). The analytes were detected using an electrospray ionization tandem mass spectrometry in the multiple-reaction-monitoring mode. The standard curve was linear (r = 0.9998) over the concentration range of 0.1–200 ng/ml. The lower limit of quantification for carvedilol was 0.1 ng/ml using 50 μl plasma sample. The coefficient of variation and relative error for intra- and inter-assay at four QC levels were 1.6–4.5% and −6.4 to 4.8%, respectively. The absolute and relative matrix effect for carvedilol and cisapride were practically absent. The extraction recoveries of carvedilol and cisapride were 81.6 and 85.2%, respectively. This method was successfully applied to the bioequivalence study of carvedilol in humans.
Journal: Journal of Pharmaceutical and Biomedical Analysis - Volume 44, Issue 2, 28 June 2007, Pages 547–552