Simpson RC, Skarbek A, Matuszewski BK. Quantitative determination of a selective alpha-1a receptor antagonist in human plasma by high-performance liquid chromatography with tandem mass spectrometric detection.
J Chromatogr B Analyt Technol Biomed Life Sci 2002;
775:133-42. [PMID:
12113979 DOI:
10.1016/s1570-0232(02)00270-2]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Solid-phase extraction, utilizing a 96-well plate format, was used to isolate an alpha-1a receptor antagonist and internal standard from human plasma. Following the isolation procedure, the analyte and internal standard were separated and detected using reversed-phase HPLC coupled with atmospheric pressure chemical ionization (APCI) mass spectrometry operated in the positive ion multiple reaction monitoring (MRM) mode. Based upon the peak area ratio (analyte: internal standard) the analyte was quantified over a concentration range of 0.02-2 ng/ml. Assay validation results including parameters such as precision and accuracy are presented. The validated method was subsequently used to support human pharmacokinetic studies.
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