Abstract

The authors describe a way of detecting nitro and amino compounds using a mass spectrometer with laser desorption/ionization. This allows analysis of nitro- and amino compounds from a metal surface without sample preparation at levels of up to 5 ng/cm² relative to paracetamol. Sensitivity is at the level of modern means of analysis, and the procedure is simple and fast. It is also universal and can be modified to search for other nitro- and amino compounds. Pointwise quantitative analysis can be done using an external standard. The dynamic range is 1.5–2 orders of magnitude. The technique can be used to analyze metal surfaces for nitro-paint residues and traces of explosive compounds.

中文翻译：

---

通过可视化质谱快速搜索和表征硝基化合物

摘要

作者描述了一种使用具有激光解吸/电离功能的质谱仪检测硝基和氨基化合物的方法。这使得无需样品制备即可分析金属表面的硝基和氨基化合物，相对于扑热息痛的浓度高达 5 ng/cm ^{2 。}灵敏度达到现代分析手段水平，且程序简单、快速。它也是通用的，可以进行修改以搜索其他硝基和氨基化合物。可以使用外标进行逐点定量分析。动态范围为 1.5-2 个数量级。该技术可用于分析金属表面的硝基涂料残留物和爆炸性化合物的痕迹。