Simultaneous determination of cardiovascular drugs in dried blood spot by liquid chromatography-tandem mass spectrometry

Published on Oct 1, 2019in Journal of Food and Drug Analysis4.176
· DOI :10.1016/j.jfda.2019.06.001
Hyung Min Kim15
Estimated H-index: 15
(SNU: Seoul National University),
Ju-Hwan Park12
Estimated H-index: 12
(SNU: Seoul National University)
+ 2 AuthorsSung Won Kwon25
Estimated H-index: 25
(SNU: Seoul National University)
Abstract A dried blood spot (DBS) sampling method was exploited to extract cardiovascular drugs in using a small volume of whole blood of human and rodent. Thereafter, an analytical method using liquid chromatography with tandem mass spectrometry (LC-MS/MS) was developed and validated for the determination of 12 cardiovascular drugs. A 6 mm internal diameter disc containing 10 μL of blood was punched from a specifically designed card and analyzed by LC-MS/MS using a gradient elution method with a total run time of 16 min. For sample separation, a universal octadecyl-silica column was used with a mobile phase flow rate of 0.2 mL/min. The developed method was validated in terms of linearity, accuracy, and precision, which showed satisfactory results. In addition, the matrix effects were closely investigated to confirm the extraction efficiency. Additionally, the stability was tested by storing DBSs at room temperature; the results showed that these drugs were stable for at least 30 days. Accordingly, the proposed LC-MS/MS method is capable to analyze several cardiovascular drugs in a single analysis. It can be applied to therapeutic drug monitoring in patients as well as in the in vivo settings.
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