1. A system for identifying drug simulants that serve as surrogates for real drugs, the system comprising: a plurality of drug simulants in liquid form, each of the drug simulants having a common inherent property which has been selectively modified among the plurality of simulants in a predetermined manner such that each drug simulant may be uniquely identified from the other drug simulants by measurement of the value of said inherent property; a port structured to receive a flow of a drug simulant from among the plurality of drug simulants; an electronic sensing system in communication with the port, the electronic sensing system being structured to measure the value of the inherent property of the drug simulant received by the port; a processing unit in electrical communication with the electronic sensing system; and a memory unit in communication with the processing unit, the memory unit having a look-up table including a plurality of predetermined ranges of values of the inherent property of the drug simulants, each range being associated in a predetermined way with a corresponding name of a real drug, wherein the processing unit is structured to identify the name of the real drug corresponding to the drug simulant received by the port by receiving signals from the sensing system indicative of the value of the measured inherent property of the drug simulant and comparing the value to the predetermined ranges of values in the look-up table in the memory unit.