Related Experiment Video
Updated: Jul 27, 2025
10:33
Research and Development of High-performance Explosives
Published on: February 20, 2016
17.6K
Recent development and trends in the detection of peroxide-based explosives
Weiguo Wang1, Hang Li2, Wei Huang2
1Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, People's Republic of China; Jinkai Instrument (Dalian) Company Limited, People's Republic of China.
Talanta
|June 8, 2023
Summary
Detecting peroxide-based explosives (PBEs) is crucial due to their increasing use. This review covers recent advancements in PBE detection techniques, focusing on improved sensitivity and selectivity for enhanced security.
Area of Science:
- Analytical Chemistry
- Forensic Science
- Materials Science
Background:
- Peroxide-based explosives (PBEs) pose a significant security threat due to their accessibility and potency.
- The detection of trace amounts of PBEs is critical for counter-terrorism efforts.
Purpose of the Study:
- To review the latest developments in techniques and instruments for detecting PBEs over the past decade.
- To highlight advancements in sensitivity, selectivity, high-throughput, and explosives coverage.
- To provide insights into future research directions for PBE detection.
Main Methods:
- Review of advancements in ion mobility spectrometry.
- Discussion of ambient mass spectrometry techniques.
- Analysis of fluorescence, colorimetric, and electrochemical detection methods.
Main Results:
- Significant improvements in sensitivity and selectivity across various detection platforms.
- Development of strategies for broader explosives coverage and faster detection.
- Evolution of instruments towards more portable and field-deployable solutions.
Conclusions:
- The field has seen substantial progress in PBE detection technologies.
- Continued innovation is needed to address emerging threats and enhance detection capabilities.
- This review serves as a guide for researchers and practitioners in explosive detection.
Keywords:
Ambient mass spectrometryColorimetric methodsFluorescence techniquesIon mobility spectrometryPeroxide-based explosivesMore Related Videos
Related Concept Videos
02:23Autoxidation of Ethers to Peroxides and Hydroperoxides
7.8K
Ethers represent a class of chemical compounds that become more dangerous with prolonged storage because they tend to form explosive peroxides when standing in the air. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly oxidize to form hydroperoxides and dialkyl peroxides.
7.8K
01:19Gas Chromatography: Types of Detectors-II
436
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
436
01:30Atomic Emission Spectroscopy: Interference
235
In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
235
01:24Peroxisomes
13.7K
Peroxisomes are specialized organelles present in fungi, plant, and animal cells. It can vary in number, size, morphology, and activity depending on the type of tissue and the nutritional state of the cell. For example, cells with active lipid metabolism, such as adipocytes, neurons, and hepatocytes, have more peroxisomes than other cells in the body. Besides their primary role in breaking down complex organic molecules, peroxisomes can also synthesize specific macromolecules and participate in...
13.7K
01:14Photoluminescence: Applications
441
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
441
01:20Radical Autoxidation
2.2K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
2.2K