THE 2-MINUTE RULE FOR FENTANYL PATCH

3. Hold the blue end of the test and submerge the wavy close with the strip from the drinking water for fifteen seconds, trying to keep the liquid degree below the blue line  Fentanyl and norfentanyl have been quantified in femoral and cardiac blood by higher-overall performance liquid chromatography-tandem mass spectrometry (LC–MS/MS) followin