Brandsteterová E, Romanová D, Králiková D, Bozeková L, Kriska M. Automatic solid-phase extraction and high-performance liquid chromatographic determination of quinidine in plasma.
J Chromatogr A 1994;
665:101-4. [PMID:
8205229 DOI:
10.1016/0021-9673(94)87036-5]
[Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
High-performance liquid chromatography (HPLC) was used for the therapeutic drug monitoring of quinidine in clinical samples. Solid-phase extraction (SPE) was studied in both off-line and on-line modes. SPE was performed in an automatic on-line mode using a fully automated Prospekt system. Extraction recoveries were in the range 97.1-99.4% for 1-2 micrograms/ml quinidine concentrations. For HPLC separation an Ultrasep RP-8 reversed-phase column was applied with acetonitrile-water (9:1) containing 0.3% triethylamine (pH 2.5) as the mobile phase. The Prospekt system is recommended for the routine monitoring of quinidine in plasma samples. Concentrations were in therapeutic range (1.2-3.6 micrograms/ml).
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