| A | B |
|---|
| Marquis | Turns purple with Heroin, Morphine, and opium derivatives; Turns orange brown with amphetamine and methamphetamine |
| Dillie-Koppanyi | Turns Violoet Blue with Barbiturates |
| Duquenois-Levine | Turns purple with Marijuana |
| Van Urk | Turns Blue Purple with LSD |
| Scott Test | Forms a Blue layer with Cocaine |
| Chromatography | Thin Layer and Gas- separates drugs from diluents |
| Spectrophotometry | Uses Ultraviolet Light |
| Mass Spectrometry | Identifies components based on charge to mass ratio |
| Infrared Spectrometry | Identifies compounds based on frequences of infrared light absorbed by various bonds (sample must be pure) |
