Bratu Ana-Maria, Petrus Mioara, Popa Cristina
National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., P.O. Box MG-36, Magurele, 077125 Bucharest, Romania.
Molecules. 2023 Oct 2;28(19):6908. doi: 10.3390/molecules28196908.
Among the many commonly encountered hazards, improvised explosive devices (IEDs) remain the primary threat to military and civilian personnel due to the ease of their production and the widespread availability of their raw materials and precursors. Identifying traces of potential precursors is the first step in developing appropriate control measures. An interesting approach is to identify the precursors that are released around the site as they are handled and transformed into the final IEDs. CO laser photoacoustic spectroscopy can offer the spectral characterization of a number of explosives-related compounds without sample preparation. Benzene, toluene, acetone, and ethylene glycol absorption spectra were determined in the IR region between 9.2 and 10.8 µm. Each substance emitted a unique photoacoustic response corresponding to its chemical composition that could be further used to identify the explosive material.
在众多常见的危险中，简易爆炸装置（IED）仍然是对军事和 civilian 人员的主要威胁，因为其制作容易，且原材料和前体广泛可得。识别潜在前体的痕迹是制定适当控制措施的第一步。一种有趣的方法是识别在现场处理并转化为最终简易爆炸装置时释放的前体。CO 激光光声光谱法无需样品制备就能对多种与爆炸物相关的化合物进行光谱表征。测定了苯、甲苯、丙酮和乙二醇在 9.2 至 10.8 µm 的红外区域的吸收光谱。每种物质都发出了与其化学成分相对应的独特光声响应，可进一步用于识别爆炸材料。
