利用 3D 打印锥喷电离质谱仪快速检测焚烧后和爆炸后的痕量和大体积能量物质

IF 4.1 Q1 CHEMISTRY, ANALYTICAL
Ryan M. Bain , TJ Pinedo , Doug J. Klapec , Christopher C. Mulligan , Patrick W. Fedick
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引用次数: 0

摘要

爆炸后和焚烧后材料的法医分析对于执法或军事调查至关重要。三维打印锥形喷雾离子化(3D-PCSI)与现场便携式质谱仪(MS)相结合,已被证明可快速、低成本地替代传统的实验室技术(高分辨率液相或气相色谱质谱法),用于检测和分析高能材料。3D-PCSI-MS 可对固体基质内或固体基质上的痕量或大量高能物质进行采样,无需进行样品制备。固体样品(在本例中为爆炸后或燃烧后的高能物质)被放置在锥体的空腔中,锥体顶端有一个约 100 微米的喷雾发射器。加入萃取/喷雾溶剂,然后施加高压。与现场便携式质谱仪连接后,可在现场进行燃烧后和爆炸后分析。双基推进剂在各种基质上燃烧,并通过 3D-PCSI-MS 进行检测。从焚烧后的样品中检测到了推进剂中使用的一种高能材料和稳定剂,无需进行样品制备。三硝基甲苯(TNT,用于军用和商用炸药)和三丙酮三过氧化物(TATP,一种自制炸药)在爆炸后分别按美国吨级和克级进行了检测。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Post-burn and post-blast rapid detection of trace and bulk energetics by 3D-printed cone spray ionization mass spectrometry

Post-burn and post-blast rapid detection of trace and bulk energetics by 3D-printed cone spray ionization mass spectrometry
Forensic analysis of post-blast and post-burn materials can be critical to a law enforcement or military investigation. 3D-printed cone spray ionization (3D-PCSI) coupled to a field portable mass spectrometer (MS) has been demonstrated as a rapid and low-cost alternative to traditional laboratory-based techniques (high resolution liquid or gas chromatography mass spectrometry) for the detection and analysis of energetic materials. 3D-PCSI-MS can sample trace or bulk energetics within or upon solid matrices with no sample preparation. Solid samples, in this case post-blast or post-burn energetics, are placed within the hollow cavity of the cone that has an approximately 100 µm spray-based emitter at the apex. An extraction/spray solvent is added, and a high voltage is subsequently applied. When coupled to a field portable MS, post-burn and post-blast analyses can be performed in the field. Double base propellant was burned on a variety of substrates and examined via 3D-PCSI-MS. An energetic material and stabilizers used in propellants were detected from the post-burn samples with no sample preparation. Trinitrotoluene (TNT, used in military and commercial explosives) and triacetone triperoxide (TATP, a homemade explosive) were examined post-blast on the US ton scale and the gram scale, respectively.
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来源期刊
Talanta Open
Talanta Open Chemistry-Analytical Chemistry
CiteScore
5.20
自引率
0.00%
发文量
86
审稿时长
49 days
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