THC 20 CAL (5 mL)
SKU
TF-0235
The THC Urine Calibrators and Controls are human urine-based and ready-to-use.
The THC Urine Calibrators and Controls are human urine-based and ready-to-use. They are prepared by spiking negative urine with known quantities of 11-nor-Δ9-THC-9-carboxylic acid, which is the major metabolite of Δ9-THC. The THC concentration is validated with a Gas Chromatography/Mass Spectrometry (GC/MS) method.