Rapid communications in mass spectrometry : RCM, 16(17), 1613-1621 (2002-08-31)
Ultrafast liquid chromatography/tandem mass spectrometry (LC/MS/MS) bioanalysis was demonstrated with the use of packed silica columns operated under elevated flow rates. A special effort has been made to achieve ultrafast analysis without sacrificing chromatographic resolution. Two multiple analyte/metabolites assays, (1)
Journal of chromatography. B, Biomedical sciences and applications, 692(1), 95-100 (1997-04-25)
A method for the quantitation of midazolam and its metabolites 1-hydroxymidazolam and 4-hydroxymidazolam from human serum capable of monitoring concentrations achieved under therapeutic conditions is presented. The substances were extracted under basic conditions with toluene and the hydroxy metabolites transformed
European journal of clinical pharmacology, 60(4), 237-246 (2004-04-29)
We investigated whether the oral administration of a low dose (75 micro g) of midazolam, a CYP3A probe, can be used to measure the in vivo CYP3A activity. Plasma concentrations of midazolam, 1'OH-midazolam and 4'OH-midazolam were measured after the oral
Rapid communications in mass spectrometry : RCM, 21(9), 1531-1540 (2007-04-06)
Midazolam (MDZ), a short-acting benzodiazepine, is a widely accepted probe drug for CYP3A phenotyping. Published methods for its analysis have used either therapeutic doses of MDZ, or, if employing lower doses, were mostly unable to quantify the two hydroxy metabolites.
Journal of chromatography. B, Biomedical applications, 655(2), 305-310 (1994-05-13)
A high-performance liquid chromatographic assay coupled with UV detection (254 nm) has been developed for the determination of midazolam and two of its hydroxylated metabolites, 1-hydroxymidazolam (1-OH) and 4-hydroxymidazolam (4-OH), in human plasma. Following a novel solid-phase extraction procedure, midazolam
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