Method for rapidly separating and detecting mixed explosives

A technology for mixing explosives and explosives, which is applied in the field of trace mixed explosives detection, can solve the problem of unreported mixed explosives and other problems, and achieve the effect of avoiding leakage

Inactive Publication Date: 2014-03-26
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

Up to now, the detection method of ion mobility spe

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  • Method for rapidly separating and detecting mixed explosives
  • Method for rapidly separating and detecting mixed explosives

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Embodiment

[0021] In order to realize the measurement of explosives, the present invention uses the ion mobility spectrometer as the ionization source as the detection instrument, and the gaseous easily ionizable compound (dichloromethane, concentration 5-100ppm) is passed into the reaction zone in the ion mobility tube of the ion mobility spectrometer, Through the ionization of nickel source, ion mobility spectrometry uses air as carrier gas and drift gas to detect mixed explosives in negative ion mode.

[0022] Different explosives in the mixture have different melting points, for example, the melting point of TNT is 80.6°C, the melting point of dinitrobenzene is 89°C, the melting point of RDX is 204°C, and the melting point of HMX is 276-286°C. The mixed explosives in the examples were purchased from Bailingwei Company, and the concentration of each single component was about 100ppm. The thermal analysis temperature of mixed explosives adopts electric heating technology, and adopts st...

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Abstract

The invention discloses a method for rapidly separating and detecting mixed explosives and belongs to the detection technologies of trace mixed explosives. According to the method, the physical characteristics that different explosives have different melting points and boiling points are utilized, an electric heating technology is adopted, and phased continuous temperature rise control is adopted near the melting points or the boiling points, the detection for the mixed explosives is finished in a wider temperature range, and the method is simple in principle and easy to realize. After the technology is mature, a novel light mixed explosive product detector can be formed, has the characteristics of small size, light weight, low cost and portability in use, and can be flexibly used for rapidly detecting various mixed explosives in public places.

Description

technical field [0001] The invention relates to the field of detection of trace mixed explosives, in particular to a method for detecting mixed explosives that is applied to non-contact and non-damage safety inspections of personnel and luggage in public places such as airports, docks, and stations. Background technique [0002] The so-called "explosives" refer to all kinds of items that can burst, and are explosive, relatively lethal and destructive, and can pose a threat and harm to public safety. In recent years, terrorists have used various hidden explosives to blackmail and hijack planes, causing plane crashes, train explosions and other horrific and tragic incidents all over the world. In order to eliminate the occurrence of these tragic events and ensure the safety of people's lives and property, airports, docks, railway stations and other places must be able to effectively detect hidden explosives in luggage and parcels. Therefore, the detection of all kinds of hidd...

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Application Information

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IPC IPC(8): G01N27/64G01N27/68G01N1/44
Inventor 王新赵琨仓怀文李海洋
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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