Automated LC-MS Method for the Fast Stereoselective Determination of Methadone in Plasma
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Sandrine Souverain
Abstract
Methadone (MTD) is a chiral drug widely used for the treatment of opioid dependence for which a rapid analytical method for the determination of each enantiomer would be advantageous. In order to improve method sensitivity and to automate the entire analytical process, a column-switching configuration has been developed. An online extraction system coupled to a cellulose-based chiral stationary phase (CSP), namely Chiralcel OJ-R, was used and detection was performed by mass spectrometry. Fifty μl of plasma were injected into the liquid chromatography-mass spectrometry (LC-MS) system after addition of acetonitrile (ACN) containing methadone deuterated D9 (MTD-D9) (internal standard) and centrifugation. For the rapid extraction step, a large particle size support was selected. A baseline separation of MTD enantiomers was obtained in less than 12 min. Trueness and precision were evaluated with control samples at 500 ng/ml of (R,S)-methadone. Trueness values were 106.6% and 103.0% for (R)-MTD and (S)-MTD, respectively, with a coefficient of variation inferior to 2.5% for both compounds. Finally, a good concordance was found using this method for analysis of plasma samples from patients in maintenance treatment as compared to a previously described HPLC-UV method after liquid-liquid extraction.
Copyright © 2003 by Walter de Gruyter GmbH & Co. KG
Articles in the same Issue
- Author Index
- Subject Index
- Contents
- Mass Spectrometry in Laboratory Medicine
- Mass Spectrometry-Based Proteomics: Current Status and Potential Use in Clinical Chemistry
- Application of Gas Chromatography-Mass Spectrometry for Analysis of Isoprostanes: Their Role in Cardiovascular Disease
- The Application of Clinical Proteomics to Cancer and other Diseases
- Therapeutic Drug Monitoring of 13 Antidepressant and Five Neuroleptic Drugs in Serum with Liquid Chromatography-Electrospray Ionization Mass Spectrometry
- Mass Spectrometric Analysis of Human Transferrin in Different Body Fluids
- Profiling and in vivo Quantification of Proteins by High Resolution Mass Spectrometry: The Example of Goserelin, an Analogue of Luteinizing Hormone-Releasing Hormone
- Determination of Nicotine and Its Major Metabolite Cotinine in Plasma or Serum by Gas Chromatography-Mass Spectrometry Using Ion-Trap Detection
- Analysis of Nitrofuran Metabolites in Food by High-Performance Liquid Chromatography with Tandem Mass Spectrometry Detection
- Automated LC-MS Method for the Fast Stereoselective Determination of Methadone in Plasma
- Proteome Analysis of Diseased Joints from Mice Suffering from Collagen-Induced Arthritis
- Quantitative Analysis of Bile Acids in Human Plasma by Liquid Chromatography-Electrospray Tandem Mass Spectrometry: A Simple and Rapid One-Step Method
- Organic Acids in the Second Morning Urine in a Healthy Swiss Paediatric Population
- Acknowledgement
- Meetings and Awards
Articles in the same Issue
- Author Index
- Subject Index
- Contents
- Mass Spectrometry in Laboratory Medicine
- Mass Spectrometry-Based Proteomics: Current Status and Potential Use in Clinical Chemistry
- Application of Gas Chromatography-Mass Spectrometry for Analysis of Isoprostanes: Their Role in Cardiovascular Disease
- The Application of Clinical Proteomics to Cancer and other Diseases
- Therapeutic Drug Monitoring of 13 Antidepressant and Five Neuroleptic Drugs in Serum with Liquid Chromatography-Electrospray Ionization Mass Spectrometry
- Mass Spectrometric Analysis of Human Transferrin in Different Body Fluids
- Profiling and in vivo Quantification of Proteins by High Resolution Mass Spectrometry: The Example of Goserelin, an Analogue of Luteinizing Hormone-Releasing Hormone
- Determination of Nicotine and Its Major Metabolite Cotinine in Plasma or Serum by Gas Chromatography-Mass Spectrometry Using Ion-Trap Detection
- Analysis of Nitrofuran Metabolites in Food by High-Performance Liquid Chromatography with Tandem Mass Spectrometry Detection
- Automated LC-MS Method for the Fast Stereoselective Determination of Methadone in Plasma
- Proteome Analysis of Diseased Joints from Mice Suffering from Collagen-Induced Arthritis
- Quantitative Analysis of Bile Acids in Human Plasma by Liquid Chromatography-Electrospray Tandem Mass Spectrometry: A Simple and Rapid One-Step Method
- Organic Acids in the Second Morning Urine in a Healthy Swiss Paediatric Population
- Acknowledgement
- Meetings and Awards