Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/14465
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Type: Journal article
Title: Quantification of the O- and N-demethylated metabolites of hydrocodone and oxycodone in human liver microsomes using liquid chromatography with ultraviolet absorbance detection
Author: Menelaou, A.
Hutchinson, M.
Quinn, I.
Christensen, A.
Somogyi, A.
Citation: Journal of Chromatography. B, Analytical Techniques in the Biomedical and Life Sciences, 2003; 785(1):81-88
Publisher: Elsevier Science BV
Issue Date: 2003
ISSN: 1570-0232
1873-376X
Statement of
Responsibility: 
Andrew Menelaou, Mark R. Hutchinson, Ingvild Quinn, Anders Christensen and Andrew A. Somogyi
Abstract: High-performance liquid chromatographic assays for the O- and N-demethylated oxidative metabolites of hydrocodone and oxycodone formed in human liver microsomes are described. A solvent–solvent extraction/re-extraction procedure followed by reversed-phase HPLC with UV detection at 210 nm allows for the quantification of hydromorphone, norhydrocodone, oxymorphone and noroxycodone. Calibration curve concentration ranges were 0.63–400 μM (0.18–114 μg/ml) and 1.25–400 μM (0.36–114 μg/ml) for hydromorphone and norhydrocodone, respectively and 0.13–20 μM (0.04–6.03 μg/ml) and 1–200 μM (0.30–60 μg/ml) for oxymorphone and noroxycodone, respectively. Assay performance was determined by intra- and inter-assay precision and inaccuracies for quality control samples and was <15% for all metabolites at each quality control concentration. These methods provide good precision, accuracy and sensitivity for use in in vitro kinetic studies investigating the oxidative metabolism of hydrocodone and oxycodone in human liver microsomes.
Keywords: Norhydrocodone; Hydromorphone; Noroxycodone; Oxymorphone
RMID: 0020030839
DOI: 10.1016/S1570-0232(02)00856-5
Appears in Collections:Pharmacology publications

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