THE BEST SIDE OF FENTANYL PATCH FIN DE VIE

3. Hold the blue end of the test and submerge the wavy end of the strip while in the water for 15 seconds, preserving the liquid level beneath the blue line  Fentanyl and norfentanyl were being quantified in femoral and cardiac blood by superior-overall performance liquid chromatography-tandem mass spectrometry (LC–MS/MS) soon after liquid–li