CN114720171A - Explosive security inspection sampling device and detection method - Google Patents

Abstract

The invention discloses an explosive security inspection sampling device and a detection method. At present, an explosive detector based on ion mobility spectrum needs to use a sampling test paper to wipe the sample, and then put it into the detector for detection and analysis. The sampling test paper is mostly made of polytetrafluoroethylene, and its surface is extremely smooth. Although the texture is increased, the sampling effect is extremely poor. To this end, the present invention discloses a convenient and efficient explosive security inspection sampling device and a use method thereof, which can be used for efficient sampling of explosive security inspection instruments. The device mainly includes: high temperature resistant polyimide tape, sampling carrier and handle.

Description

A kind of explosive security inspection sampling device and detection method

technical field

The invention relates to an explosive security inspection sampling device and method.

Background technique

Ion Mobility Spectrometry (IMS) is a technology that separates and detects sample ions through a uniform weak electric field according to the difference in ion mobility under atmospheric pressure. It has the advantages of fast detection speed (single detection period < 20ms), high sensitivity, easy miniaturization, and low cost, and is widely used in military, security inspection and other fields. Among them, the application of explosive safety detection is the most common.

But at present, explosives detectors based on ion mobility spectrometry need to use sampling test paper to wipe the samples, and then put them into the detector for detection and analysis. The sampling test paper is mostly made of polytetrafluoroethylene, and its surface is extremely smooth. Although the texture is increased, the sampling effect is extremely poor.

To this end, the present invention discloses a convenient and efficient explosive security inspection sampling device and a method of using the same. The high temperature-resistant polyimide tape is used as the sampling test paper, and the explosive residue samples on the surface and deep layers of the object are adhered to make the explosives Sampling is more efficient.

SUMMARY OF THE INVENTION

An explosive security inspection sampling device, characterized in that:

The device comprises: a high temperature resistant polyimide tape (1), a sampling carrier (2), and a handle (3); one end of the handle (3) is connected to the sampling carrier (2);

The outer periphery of the sampling carrier is provided with a high temperature resistant polyimide tape (1); the adhesive surface of the high temperature resistant polyimide tape (1) is outward.

Wind the non-adhesive surface of the high-temperature resistant polyimide tape (1) around the carrier (2) for one week and fix it. Hold the handle (3) to take samples of explosive residues on the surface and deep.

Further, in the above technical solution, the thickness of the high temperature resistant polyimide tape (1) is 0.5-2 mm.

Further, in the above technical solution, the angle between the sampling carrier (2) and the handle (3) is 0-90°.

The invention provides a method for security inspection sampling and detection of explosives. The above device is used for sampling, and the handle (3) of the sampling device is held to take samples through high temperature resistant polyimide tape (1); Explosive residue samples on the surface and deep layers of the object, and then cut an appropriate amount of high-temperature polyimide tape (1) that has been sampled, and put it into the explosives security detector for detection.

The invention provides a sampling and detection method for security inspection of explosives, which is characterized in that: a high-temperature polyimide tape is used as a sampling test paper to stick and take samples, and then an appropriate amount of the high-temperature polyimide tape that has been sampled is cut and placed in a security inspection apparatus for explosives detection.

Further, in the above-mentioned technical scheme, the high temperature resistant polyimide tape is laid flat on the fixed sampling area or the surrounding ground, the adhesive surface of the high temperature resistant polyimide tape is facing up, and the samples of the personnel's soles in this area are glued and taken out, and then Cut an appropriate amount of sampled high temperature polyimide tape and put it into the explosives security detector for detection.

Further, in the above technical solution, the high temperature resistant polyimide tape is flatly fixed on the floor in front of the door.

Further, in the above technical solution, the high temperature resistant polyimide tape (1) can withstand a high temperature of 300°C, and is activated at a high temperature of 200-300°C for 12 hours before use to remove the interference of residual substances in the tape.

The advantages of the present invention are as follows:

According to the method of the invention, the sampling test paper can be conveniently purchased and customized, can be stored in rolls, and is convenient to carry.

The method of the invention uses the sticky characteristics of the polyimide tape, and can stick samples of explosive residues on the surface and deep layers of objects, and the sampling effect is better.

Description of drawings

Figure 1 is a schematic structural diagram of an explosive security inspection sampling device, wherein 1 is a high temperature resistant polyimide tape, 2 is a sampling carrier, and 3 is a handle.

Detailed ways

The following examples illustrate the use of the present invention, but do not limit the scope of application described.

The high temperature resistant polyimide tape (1) can withstand high temperature of 300 °C. Before use, it should be activated for 12 hours in a high temperature and clean air atmosphere of 200-300 °C to remove the interference of residual substances in the tape.

An explosive security inspection sampling device, the device comprises: a high temperature resistant polyimide tape (1), a sampling carrier (2), and a handle (3); one end of the handle (3) is connected to the sampling carrier (2); The outer periphery of the sampling carrier is provided with a high temperature resistant polyimide adhesive tape (1); the adhesive surface of the high temperature resistant polyimide adhesive tape (1) is outward.

Example 1

Wrap the non-adhesive surface of the high temperature resistant polyimide tape (1) around the carrier (2) and fix it, with the adhesive-containing surface facing outwards, hold the handle (3) to stick the suspicious item.

Example 2

Without the sampling carrier (2) and the handle (3), directly stick the samples with high-temperature polyimide tape, and then cut an appropriate amount of the sampled tape and put it into the explosives security detector for detection.

Example 3

Lay and fix a large area of polyimide tape on the floor in front of the door, stick and take out the sample of the shoe sole of the door personnel, and then cut an appropriate amount of the sampled tape and put it into the explosive security detector for detection.

Claims (9)

1. An explosives security inspection sampling device is characterized in that: The device comprises: a high temperature resistant polyimide tape (1), a sampling carrier (2), and a handle (3); one end of the handle (3) is connected to the sampling carrier (2); The outer periphery of the sampling carrier is provided with a high temperature resistant polyimide tape (1); the adhesive surface of the high temperature resistant polyimide tape (1) is outward. 2 . The explosives security inspection sampling device according to claim 1 , wherein the thickness of the high temperature resistant polyimide tape (1) is 0.5-2 mm. 3 . 3 . The explosives security inspection sampling device according to claim 1 , wherein the angle between the sampling carrier ( 2 ) and the handle ( 3 ) is 0-90°. 4 . 4. An explosives security inspection sampling detection method is characterized in that: adopting the device according to claim 1 or 2 for sampling, holding the sampling device handle (3) to take samples by sticking with high temperature resistant polyimide tape (1); To determine the viscosity of the polyimide tape, stick samples of explosive residues on the surface and deep layers of the object, and then cut out an appropriate amount of high-temperature-resistant polyimide tape (1) that has been sampled, and put it into an explosives security detector for detection. 5. A method for sampling and detecting explosives security inspection, it is characterized in that: adopt high-temperature polyimide tape as sampling test paper to stick and take samples, then cut an appropriate amount of high-temperature polyimide tape that has been sampled, put into explosives security inspection instrument and detect . 6. The method according to claim 5, characterized in that: the high temperature resistant polyimide tape is laid flat on the fixed sampling area or the surrounding ground, the adhesive surface of the high temperature resistant polyimide tape is facing upward, and the adhesive tape is taken out into the area. Samples of the soles of the personnel, and then cut an appropriate amount of high-temperature polyimide tape that has been sampled, and put them into the explosives security detector for detection. 7 . The method according to claim 6 , wherein the high temperature resistant polyimide tape is flatly fixed on the floor in front of the door. 8 . 8. The method according to claim 4 or 5, wherein the explosives security detector is an explosive detector based on ion mobility spectrometry. 9. The device according to any one of claims 1 to 3, or the method of any one of claims 4 to 8, characterized in that: the high temperature resistant polyimide tape (1) can withstand a high temperature of 300° C. Activation treatment at a high temperature of 300 ° C for 12 hours to remove the interference of residual substances in the tape.

Images