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Name methadone
Specimen requirements 2 ml of serum
Procedure remarks Half-life period in the plasma: 15-60 h (L-Methadone)
The half-life period depends on age, height and weight.
Methodology LCMS/MS (liquid chromatography with tandem mass spectrometry)
Reference ranges 500-1000 mg/l
Remarks Testing currently takes place in a contract laboratory