| Abstract:In recent years,chemical terrorist attacks and chemical accidents that have occurred continuously at home and abroad are still a major threat to human survival and national security.Chemical detection is the eye for chemical emergency disposal and rescue.Skillful mastery and proper use of detection equipment are the key factors in dealing with chemical threats and reducing losses and casualties.The detection equipments based on chemical sensing and other techniques possess the characteristics of fast response,intelligence and portability,and have the advantages of remote monitoring and real time duty.In this paper,the principles,performance,advantages and disadvantages of the on site detection equipments including electrochemical sensor,mass sensitive sensor,infrared sensor,Raman sensor,ion mobility spectrometry detector,flame photometric detector,photo ionization detector and remote telemetry sensing equipment are summarized.Specifically,the latest progress of detection equipments dealing with chemical threats is mainly described.The development trend and application prospects of chemical sensing equipments are prospected,which will provide a reference for the further research and application of chemical detection equipments in response to chemical threats. |
