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Handheld Fluorescent Raman Technology for Explosive Detection - China Suppliers & Factory Solutions
🔍 Product Introduction
⚡ This instrument integrates Fluorescent Quenching and Raman spectral technologies for comprehensive trace explosive detection.
Fluorescent Quenching: The Trace Explosive Detector is based on fluorescence technology. When the polymer fluorescent material inside the instrument contacts the explosive molecule, its fluorescence intensity and peak position will change. This change is recorded by the high-sensitivity detector inside the machine, and whether explosives can be found on the measured object is determined through analysis.
Fluorescent technology is used to achieve a large-range trace screening of suspicious people and objects. Suspicious people, items, parcels, and unattended objects can be checked by external wiping or inhalation — without opening the bag — to achieve danger warning.
Raman: The principle of Raman spectral detection is that when light hits a molecule, the frequency of the scattered light changes. This frequency change corresponds to the molecular structure one-to-one, so by measuring the change in scattering light frequency, the structure of the molecule can be identified, and thus the composition of the material can be determined.
Due to the unique advantages brought by Raman's principle — no contact, high accuracy, and fast speed — it is particularly suitable for the measurement of solid and liquid suspicious explosives, flammable and explosive materials, and toxic and harmful substances. Combined with a solid-liquid sampling cap, it can realize the measurement of trace substances (liquid 5 µl, solid 5 mg). Raman products with transmitted light path, spatial direct coupling, and confocal technology offer small size, light weight, fast speed (less than 5 seconds), high accuracy, non-contact operation, and freedom from environmental interference. They can detect concentrations of 5% (5 µl) and enable rapid identification of up to three mixed components (less than 5 seconds).
⭐ Features
🏆 World's first handheld integrated device combining Fluorescence Quenching and Raman — lightweight and easy to carry.
🔳 Fluorescent Quenching
✓
Advantages: High sensitivity, capable of reaching 0.1 ng.
🔴 Raman
✓
Advantages: Accurately identifies the types of explosives. In addition, it can detect flammable and explosive materials, toxic and harmful substances, with a database reaching 10,000+ kinds.
⚙ Main Parameter
| (1) Laser Wavelength | 785 nm ± 0.02 nm |
| (2) Resolution Ratio | 8–11 cm⁻¹ |
| (3) Laser Power | 1–500 mW Continuous Adjustable |
| (4) Spectral Range | 200–1800 cm⁻¹ |
| (5) Database: More than 10,000 kinds, including 200+ kinds of drugs and precursor drugs, 200+ kinds of new psychoactive substances, 106 kinds of fentanyl, and more than 100 kinds of synthetic cannabinoids. | |
| (6) Detection Speed | ≤ 3s |
| (7) Detection Limit | ≤ 3% (alcohol) |
| (8) Accuracy Rate | ≥ 99% |
❓ Frequently Asked Questions
Q
What is the main detection principle of this handheld explosive detector?
This device integrates two detection technologies: Fluorescent Quenching and Raman Spectroscopy. Fluorescent quenching detects explosives by measuring changes in fluorescence intensity when polymer materials contact explosive molecules. Raman spectroscopy identifies substances by analyzing the frequency shift of scattered light, which corresponds uniquely to molecular structures.
Q
What is the minimum detectable concentration using the fluorescent quenching method?
The fluorescent quenching method offers extremely high sensitivity, capable of detecting explosive traces down to 0.1 ng (nanogram), making it ideal for screening the most minute residues on surfaces, bags, and clothing.
Q
How fast can the Raman module identify a substance?
The Raman module delivers rapid identification results in less than 5 seconds for single substances. It can also analyze mixtures and accurately identify up to three mixed components in under 5 seconds, with an overall detection speed of ≤ 3 seconds and an accuracy rate of ≥ 99%.
Q
What types of substances can this device identify beyond explosives?
In addition to explosives, the device can detect and identify flammable and explosive materials, toxic and harmful substances, drugs (including 200+ precursor drugs), 200+ new psychoactive substances, 106 kinds of fentanyl analogs, and more than 100 synthetic cannabinoids. The database covers over 10,000 substance types.
Q
Does the device require opening bags or direct contact during screening?
No. The fluorescent technology enables screening via external surface wiping or air inhalation, without the need to open any bags or packages. The Raman module also supports non-contact measurement, making the device safe and efficient for checkpoint and field use.
Q
What is the minimum sample size required for trace substance detection using the Raman module?
Using a solid-liquid sampling cap, the Raman module can detect trace substances at very small quantities: as little as 5 µl for liquids and 5 mg for solids. This makes it exceptionally useful for identifying trace residues in field investigations.
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