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Robotic method for the analysis of morphine and codeine in urine
D L Vidal1, E J Ting, S L Perez
1Los Angeles County Sheriff's Department, Scientific Services Bureau.
Journal of Forensic Sciences
|September 1, 1992
Summary
A new automated method reliably detects and quantifies morphine and codeine in urine. This robotic system enhances efficiency for toxicology screening and confirmation testing.
Area of Science:
- Forensic Toxicology
- Analytical Chemistry
- Laboratory Automation
Background:
- Urine drug screening is crucial for clinical and forensic toxicology.
- Accurate detection and quantification of opioids like morphine and codeine are essential.
- Manual sample preparation for drug analysis can be time-consuming and prone to errors.
Purpose of the Study:
- To develop and validate a fully automated procedure for morphine and codeine detection and quantification in urine samples.
- To improve the efficiency and reliability of opioid analysis in forensic and clinical toxicology.
Main Methods:
- Initial screening of urine samples using the Syva EMIT Toxicology System (ETS).
- Confirmation of positive samples via a Zymate laboratory robotic system for hydrolysis, extraction, and derivatization.
- Detection of derivatized morphine and codeine using gas chromatography/mass spectrometry (GC/MS).
- Optimization of enzymatic hydrolysis conditions during method development.
Main Results:
- A completely automated workflow for morphine and codeine analysis in urine was established.
- The automated procedure demonstrated reliability and efficiency in sample processing.
- Gas chromatography/mass spectrometry provided sensitive and specific detection of the target analytes.
Conclusions:
- The developed automated procedure offers a robust and efficient solution for the detection and quantification of morphine and codeine in urine.
- Automation significantly streamlines the toxicology workflow, reducing manual labor and potential for human error.
- This method is suitable for routine use in forensic and clinical toxicology laboratories.