Recently, PTR-TOFMS was constructed by the Laboratory of Mass Spectrometry at the Medical Physics Center. This is the second one obtained after the early development of the PTR-QMS unit in the laboratory. Important progress. Proton transfer reaction mass spectrometry (PTR-MS) is a high-end on-line mass spectrometer with the advantages of fast detection (milliseconds), high sensitivity (ppt), quantitative measurement Real-time on-line monitoring and early warning of VOCs are important testing tools in many fields such as atmospheric environment, food safety, biomedicine and public safety in Europe and the United States. The PTR-TOFMS developed by the spectrometry and mass spectrometry laboratory this time has high resolving power in addition to the unique advantages of PTR-QMS and can distinguish substances with similar molecular weights. Tests show that the PTR-TOFMS developed can detect trace amounts of VOCs in laboratory air or expired air and easily sniff out the homemade explosive triartene trioxide (TATP) used in the recent Paris shooting and bombing. The successful development of PTR-TOFMS device not only provides new technical means for high-resolution detection of organic matter, but also lays a solid foundation for the development of laser mass spectrometry imaging technology. PTR-TOFMS detects air / expiration PTR-TOFMS Sniffing Explosives TATP Rubber Masking Tape,Hotmelt Masking Tape,General Masking Tape,Car Painting Masking Tape Ningbo Baichuan Adhesive Products Co., Ltd. , https://www.bcptape.com