HTD, Explosives trace detector or narcotics trace detector, provides a range of portable and desktop solutions designed to detect and/or identify various explosives (commercial, military or plastic) and narcotics.

The solution is designed to meet the highest requirements for trace detection and identification, and is ideal for military applications, airports, ports, police stations, border checkpoints, government buildings, prisons and other safe places. What technologies are used in the narcotics trace detector?

This passage is going to talk about the followings of the technologies used in the narcotics trace detector:

(1)Description of narcotics trace detector

(2)Technologies used in the narcotics trace detector

(1)Description of narcotics trace detector

The Explosive trace detector (ETD) is an explosive detection device that can detect small quantities of explosives. The detection is done by sampling invisible "trace" particles. Equipment similar to ETD is also used to detect drugs. This device is mainly used in airports and other areas prone to illegal interference. The portable handheld narcotics detector can detect trace traces of cocaine, opium (heroin and morphine), marijuana and amphetamine-type stimulants (methamphetamine), making it an important partner in key narcotics detection scenarios.

(2)Technologies used in the narcotics trace detector

Colorimetry

The colorimetric test box for explosive detection is one of the oldest, simplest and most widely used methods for detecting explosives. Colorimetric detection of explosives involves applying chemical reagents to unknown materials or samples and observing the color reaction. Common color reactions are known and indicate to the user whether there is an explosive, and in many cases, the explosive group from which the material is derived. The main types of explosives are nitroaromatic explosives, nitrate ester and nitramine explosives, nitro-free simple explosives, including inorganic nitrate explosives, chlorate explosives and peroxide explosives.

Mass spectrometry

Recently, mass spectrometry (MS) has become another ETD technique. Due to the high resolution of the core technology, the use of mass spectrometry should reduce the false alarm rate usually associated with ETD. [Citation needed] It also uses a non-radioactive ionization method, usually secondary electrospray ionization (SESI-MS). Mass spectrometers are mainly used in desktop ETD systems, and can be miniaturized for handheld ETDs.

Chemiluminescence

The technology is based on the luminescence of certain compounds when attached to explosive particles. This is mainly used for non-electronic equipment such as sprayers and test paper. The sensitivity is very low (in nanograms).

Thermal reduction

The technology is based on the decomposition of explosive substances and then reduction of nitro groups. Most military-grade explosives are nitro compounds with large amounts of NO2 groups. Explosive vapors are sucked into the adsorber at a high rate and then pyrolyzed. Then detect the presence of nitro groups in the pyrolysis product. Since many other harmless compounds also have a large number of nitro groups, this technology has more false alarms. For example, most fertilizers have nitro groups that are mistaken for explosives, and the sensitivity of this technology is also low.

With the continuous development of detection technology and the development and commercialization of systems, narcotics trace detector can effectively help deal with dangers and threats. Give our society the safety and security. We hope this article has helped you understand more about the technologies used in the narcotics trace detector. If you have any problem about the narcotics trace detector, do not hesitate to contact us.