Related Experiment Video
Updated: Aug 17, 2026

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry
Published on: April 23, 2019
Simultaneous determination of oxycodone and its major metabolite, noroxycodone, in human plasma by high-performance
Olga Cheremina1, Iouri Bachmakov, Antje Neubert
1Department of Experimental and Clinical Pharmacology and Toxicology, Friedrich Alexander University Erlangen-Nürnberg, Fahrstrasse 17, D-91054 Erlangen, Germany.
Abstract:
Oxycodone (14-hydroxy-7,8-dihydrocodeinone) is a potent opioid receptor agonist. In the present study, a liquid-liquid extraction-based reversed-phase HPLC method with UV detection was validated and applied for the analysis of oxycodone and its major metabolite, noroxycodone, in human plasma. The analytes were separated using a mobile phase, consisting of acetonitrile and phosphate buffer (8:92, v/v) at a flow rate of 1 mL/min, and UV detection at 205 nm. The retention times for oxycodone, noroxycodone and codein (internal standard) were 14.7, 13.8 and 10.2 min, respectively. The validated quantitation range of the method was 2-100 ng/mL for oxycodone and 10-100 ng/mL for noroxycodone. The developed procedure was applied to assess the pharmacokinetics of oxycodone and its metabolite following administration of a single 20 mg oral dose of oxycodone hydrochloride to one healthy male volunteer.
More Related Videos
Related Concept Videos
Nonlinear Pharmacokinetics: Dependence of Elimination Half-Life and Dose Clearance
A study on guinea pigs examined the...
High-Performance Liquid Chromatography: Types of Detectors
High-Performance Liquid Chromatography: Introduction
In HPLC, two phases play a critical role in the separation process:
High-Performance Liquid Chromatography: Elution Process
Drug Distribution as One-Compartment Model and Elimination by Nonlinear Pharmacokinetics: Overview
For instance, consider the metabolism of sodium salicylate. This compound is metabolized into two distinct substances: a glucuronide and a glycine conjugate. The rate of conjugation depends on...
Pharmacogenetics of Phase I Enzymes: Cytochrome P450 Isozymes

