Explosives detection: comparison of analytical and performance characteristics of mass spectrometers and ion mobility spectrometers

The main analytical and operational characteristics of stationary (laboratory), portable (handheld) mass spectrometers, as well as ion mobility spectrometers for detection of traces and vapors of explosives are compared. The limit of detection, time of readings establishment (fast performance), range (linear) of detectable substance content in samples, resolution, cost of the mentioned devices are considered. The requirements for performance and reliability of detection, maintenance, qualification of operating and service personnel are discussed. Promising directions of further improvement of these devices are listed.