ABOUT PATCH FENTANYL CHIEN

three. Keep the blue end from the test and submerge the wavy end of the strip within the h2o 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 high-general performance liquid chromatography-tandem mass spectrometry (LC–MS/MS) soon after liquid