ABOUT FENTANYL PATCH HEALTHHUB

3. Hold the blue end of the test and submerge the wavy close with the strip in the h2o for fifteen seconds, trying to keep the liquid degree beneath the blue line  Fentanyl and norfentanyl have been quantified in femoral and cardiac blood by substantial-general performance liquid chromatography-tandem mass spectrometry (LC–MS/MS) following liqu