Street drugs were analyzed using EnSpectr MixSplitter to reveal the content of drug preparations down to 0.1 % mass fraction. The MixSplitter instrument served as a solid-state chromatograph. Although its sensitivity is appreciably lower than that of a liquid or gas chromatograph, the absence of necessity for time-consuming sample preparation and high identification rate of narcotic substances in small quantities (10 min.) make MixSplitter an indispensible tool for rapid detection and identification of narcotic substances in mixture compounds.