Drug detection

Inset:False-color image in which the red, green, and blue planes were assigned values proportional to the concentrations of MDMA, Aspirin, and methamphetamine, respectively. (Credit: Kodo Kawase)

Inset:False-color image in which the red, green, and blue planes were assigned values proportional to the concentrations of MDMA, Aspirin, and methamphetamine, respectively. (Credit: Kodo Kawase)