Triacetone triperoxide(TATP)is a kind of peroxide-based explosive.Because of the preparation of easily obtained raw materials,simple preparation method,TATP was used by terrorists for terrorist attacks and criminal activites.In this study,an acetone-assisted photoionization ion mobility spectrometry(AAPI-IMS)was developed for sensitive detection of TATP with 25 mg/L acetone as the dopant.The parameters of AAPI-IMS were optimized with respect to electric field intensity and temperature of inlet.Under theopti...