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 Start by placing the unopened plastic bag in the tank for 15-20 minutes. This will give the fish time to start getting used to the water in the quarantine tank.  After 15-20 minutes, open the bag and use a clean cup to scoop an equal amount of water from the tank into the plastic bag.