5 SIMPLE TECHNIQUES FOR FENTANYL PATCH CHANGE SCHEDULE

3. Maintain the blue close from the test and submerge the wavy finish from the strip inside the h2o for fifteen seconds, maintaining the liquid degree down below the blue line  Fentanyl and norfentanyl were quantified in femoral and cardiac blood by higher-functionality liquid chromatography-tandem mass spectrometry (LC–MS/MS) immediately after