A rapid detection method for policy-sensitive amines real-time supervision
文献类型：期刊论文
| 作者 | Zhang, Haixu; Shu, Jinian; Yang, Bo; Zhang, Peng; Ma, Pengkun |
| 刊名 | TALANTA
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 178页码:636-643 |
| ISSN号 | 0039-9140 |
| 关键词 | Amine Illicit drug Photoionization Doping Mass spectrometry Online detection |
| 文献子类 | Article |
| 英文摘要 | Many organic amines that comprise a benzene ring are policy-sensitive because of their toxicity and links to social harm. However, to date, detection of such compounds mainly relies on offline methods. This study proposes an online pptv (parts per trillion by volume) level of detection method for amines, using the recently-built vacuum ultraviolet photoionization mass spectrometer (VUV-PIMS) combined with a new doping technique. Thus, the dichloromethane doping-assisted photoionization mass spectra of aniline, benzylamine, phenethylamine, amphetamine, and their structural isomers were recorded. The dominant characteristic mass peaks for all amines are those afforded by protonated amines and the amino radical-loss. The signal intensities of the amines were enhanced by 60-130 times compared to those recorded without doping assistance. Under 10 s detection time, the sensitivities of aniline and benzylamine in the gas phase were determined as 4.0 and 2.7 counts pptv(-1), with limits of detection (LODs) of 36 and 22 pptv, respectively. Notably, the detection efficiency of this method can be tenfold better in future applications since the ion transmission efficiency of the mass spectrometer was intentionally reduced to similar to 10% in this study. Therefore, dichloromethane doping-assisted photoionization mass spectrometry has proven to be a highly promising on-line approach to amine detection in environmental and judicial supervision and shows great potential for application in the biological field. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40796]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Zhang, Haixu,Shu, Jinian,Yang, Bo,et al. A rapid detection method for policy-sensitive amines real-time supervision[J]. TALANTA,2018,178:636-643. |
| APA | Zhang, Haixu,Shu, Jinian,Yang, Bo,Zhang, Peng,&Ma, Pengkun.(2018).A rapid detection method for policy-sensitive amines real-time supervision.TALANTA,178,636-643. |
| MLA | Zhang, Haixu,et al."A rapid detection method for policy-sensitive amines real-time supervision".TALANTA 178(2018):636-643. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。