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Updated: Aug 14, 2026

Integration of Miniaturized Solid Phase Extraction and LC-MS/MS Detection of 3-Nitrotyrosine in Human Urine for Clinical Applications
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Integration of Miniaturized Solid Phase Extraction and LC-MS/MS Detection of 3-Nitrotyrosine in Human Urine for Clinical Applications

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Impact of lowering the screening and confirmation cutoff values for urine drug testing based on dilution indicators

Albert D Fraser1, Jiri Zamecnik

  • 1Department of Pathology and Laboratory Medicine, Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada. adfraser@dal.ca

Therapeutic Drug Monitoring
|November 26, 2003
PubMed

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