Abstract
An improved high-performance liquid chromatographic method has been developed to measure human plasma concentrations of the analgesic nonsteroidal anti-inflammatory drug ketorolac for use in pharmacokinetic studies. Samples were prepared for analysis by solid-phase extraction using Bond-Elut PH columns, with nearly complete recovery of both ketorolac and the internal standard tolmetin. The two compounds were separated on a Radial-Pak C18 column using a mobile phase consisting of water-acetonitrile-1.0 mol/l dibutylamine phosphate (pH 2.5) (30:20:1) and detected at a UV wavelength of 313 nm. Using only 250 μl of plasma, the standard curve was linear from 0.05 to 10.0 μg/ml.
Original language | English (US) |
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Pages (from-to) | 383-386 |
Number of pages | 4 |
Journal | Journal of Chromatography B: Biomedical Sciences and Applications |
Volume | 755 |
Issue number | 1-2 |
DOIs | |
State | Published - May 5 2001 |
Keywords
- Ketorolac
ASJC Scopus subject areas
- Chemistry(all)