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  • High-performance liquid chromatographic monitoring of intravenously administered diacetylmorphine and morphine and their metabolites in human plasma.

High-performance liquid chromatographic monitoring of intravenously administered diacetylmorphine and morphine and their metabolites in human plasma.

Journal of chromatography. B, Biomedical sciences and applications (1997-06-20)
D Bourquin, T Lehmann, R Hämmig, M Bührer, R Brenneisen
ABSTRAKT

A rapid and selective reversed-phase high-performance liquid chromatographic assay with gradient elution and diode-array detection for diacetylmorphine, morphine, codeine, and their free and glucuronidated metabolites in plasma, was developed. After addition of ethylmorphine as internal standard the plasma samples were extracted using C18 ODS-2 solid-phase columns with a recovery better than 80%. The limit of quantitation using an injection volume of 2 microl was 25 ng/ml for each compound. The intra- and inter-day precision was better than 5%. The described method cannot only be used for pharmacokinetic studies but also for intoxication cases to monitor a wide range of opiates.

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Normorphine solution, 1.0 mg/mL in methanol, ampule of 1 mL, certified reference material, Cerilliant®