The first international non-radioactive photoionization source ion mobility spectrometer developed by Li Yang, a researcher of the Dalian Institute of Rapid Isolation and Rapid Detection and Detection, can simultaneously detect explosives and drugs. This new product is China's completely independent intellectual property product and can detect explosives, drugs and other dangerous substances within 6 seconds.

With the rapid flow of people and materials, how to quickly and accurately detect hidden drugs and explosives in crowds and goods has become an urgent problem to be solved in relation to public safety. Ion mobility spectrometry technology has been rapidly developed and widely used in the detection of drugs and explosives because of its advantages of simple instrument, small size, high sensitivity and fast analysis time. However, due to the use of radioactive materials for such testing equipment used in China, the reporting purchase has been strictly controlled, and most of the equipment that can meet the technical specifications such as sensitivity and reliability are currently monopolized by foreign companies and the cost of consumables is high. Many of the purchased detection devices are mostly idle.

According to reports, ion mobility spectrometry is a gas-phase ion separation analysis technique under atmospheric conditions. The principle is similar to the 100-meter race: different ions are placed on the same starting line, and different substances are identified according to the time when the ions reach the end point. The new equipment developed by the institute does not use radioactive materials, but also can quickly and positively switch between positive and negative ion detection. The scope of detection has become more extensive, and it has been checked within six seconds whether passengers carry dangerous chemicals such as explosives and drugs. In addition, the cost of consumables of the instrument is also low, and the built-in automatic cleaning system allows the equipment to have lower requirements on the environment, and is suitable for people-intensive public places such as airports, docks, stations, and large assembly security inspections.

It is understood that the equipment has been applied for more than 20 invention patents, established a series of standard production processes such as modular design and processing, laid a solid foundation for large-scale production, and has obtained market qualifications.