Development of a method for forensic chemical study of micro-quantities of an unknown narcotic substance in a multi-component mixture using chromato-mass spectrometry and IR-spectrophotometry

The paper presents a method for forensic chemical study of the micro-amount of the narcotic drug marijuana in a multicomponent mixture using chromato-mass spectrometric analysis and IR spectrophotometry The retention time, molecular and fragment ions, their intensity, the individual fragmentation of each component, as well as the values of the characteristic transmission bands of functional groups characteristic of the studied components were established. These parameters are recommended to be used to detect controlled substances in complex mixtures, as well as to determine the generic and group affiliation and their common source of origin. These methods have been proven to be highly sensitive, fast and easy to use.