THE BEST SIDE OF FENTANYL PATCH FIN DE VIE

3. Hold the blue conclude on the test and submerge the wavy stop from the strip in the water for fifteen seconds, keeping the liquid amount underneath the blue line  Fentanyl and norfentanyl had been quantified in femoral and cardiac blood by substantial-effectiveness liquid chromatography-tandem mass spectrometry (LC–MS/MS) right after liquid�