How to use reagent tests? color chart instructions marquis
Marquis Reagent Test Instructions
The Marquis reagent on its own is colorless. It’s best to use Marquis reagent to test MDMA, MDA, 2C-B, cocaine, meth/amphetamine, or opioids, but it’s also a good test for benzofurans, cathinones, tryptamines, and phenethylamines. NOTE: Marquis can only test the PRESENCE, not PURITY or QUANTITY of a specific substance.Always test under a strong light […]