Detects therapeutic and illicitly synthesized forms of acetyl fentanyl and fentanyl. Useful in many situations: pain management, dependency/ rehabilitation, methadone clinics, and drug courts. Fentanyl is screened via enzyme immunoassay (EIA). Acetyl fentanyl and fentanyl are confirmed on GC-MS equipment.
To use this method, make a diluted bleach solution with one part bleach and one to two parts water. Fill your plastic container with the solution and let it soak for about half an hour. After itâs done soaking in the solution, give the container a good scrubbing with hot water and dish soap.
1 For this method, the goal is to lightly sand off the top layer of the plastic that is discolored to reveal a new, white layer. 2  Begin by wiping down the plastic piece completely. 3  Rub the superfine sandpaper over the surface to remove the yellowed portions. 4  When finished, wipe with a moist cloth to remove any dust.