| 纸喷雾离子源质谱对易燃液体的快速分析方法研究 |
| |
| 引用本文： | 刘博伟,,罗爱芹.纸喷雾离子源质谱对易燃液体的快速分析方法研究[J].中国安全生产科学技术,2016,12(5):48-53. |
| |
| 作者姓名： | 刘博伟 罗爱芹 |
| |
| 作者单位： | （1．北京理工大学 生命学院，北京 100081； 2．新疆公安厅消防局 乌鲁木齐市公安消防局，新疆 乌鲁木齐830000） |
| |
| 摘 要： | 为提高对易燃液体的快速检测分析能力，在经典纸喷雾质谱的基础上，发展建立了三种新型的基于纸喷雾离子化的质谱方法，分别为基于针尖辅助纸喷雾质谱、基于导电纸辅助纸喷雾质谱、基于金属网辅助纸喷雾质谱。结果显示，在优化的实验条件下，可以迅速检测到样品中的目标化合物质子化峰。对于汽油样品，目标化合物主要是烷基吡啶类同系物；对于柴油样品，目标化合物主要是几种系列的含氮杂环芳香族化合物的同系物。对汽油和柴油样品的检测浓度均能达到5×103 ppm。这三种敞开式离子源质谱方法在对易燃液体的分析中，具有选择性好、无需样品前处理、分析迅速的特点。
|
| 关 键 词： | 易燃液体 物证分析 快速分析 敞开式质谱法 纸喷雾离子化 |
Study on rapid analysis methods for flammable liquids by paper
spray ionization mass spectrometry |
| |
| LIU Bowei,,LUO Aiqin.Study on rapid analysis methods for flammable liquids by paper
spray ionization mass spectrometry[J].Journal of Safety Science and Technology,2016,12(5):48-53. |
| |
| Authors: | LIU Bowei LUO Aiqin |
| |
| Affiliation: | (1. School of Life Science, Beijing Institute of Technology, Beijing 100081, China;
2. Fire Department of Urumqi, Public Security Fire Department of Xinjiang, Urumqi Xinjiang 830000, China) |
| |
| Abstract: | In order to improve the rapid detection and analysis capability of flammable liquids, three new-type methods of paper spray ionization mass spectrometry (PSI-MS) including tip-assisted PSI-MS, electro conductive paper-assisted PSI-MS and metal net-assisted PSI-MS were developed on the basis of classical PSI-MS. The results showed that under the optimized experimental conditions, the protonation peak of target compounds in samples could be detected rapidly. For gasoline samples, the target compounds were a homologous series of alkyl pyridines, while for diesel samples, the target compounds were several classes homologous series of N-heteroaromatics. Both the gasoline and diesel samples were successfully detected at the concentration of 5×103 ppm. These methods can be applied for analysis of flammable liquids by their advantages including good selectivity, without requirement of sample pretreatment and rapid analysis. |
| |
| Keywords: | flammable liquid evidence analysis rapid analysis ambient mass spectrometry paper spray ionization |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国安全生产科学技术》浏览原始摘要信息 |
|
点击此处可从《中国安全生产科学技术》下载全文 |
