Single Photon Ionization and Chemical Ionization Combined Ion Source Based on a Vacuum Ultraviolet Lamp for Orthogonal Acceleration Time-of-Flight Mass Spectrometry
文献类型：期刊论文
| 作者 | Hua, Lei1,2; Wu, Qinghao1,2; Hou, Keyong1; Cui, Huapeng1,2; Chen, Ping1,2; Wang, Weiguo1; Li, Jinghua1; Li, Haiyang1 |
| 刊名 | analytical chemistry
 |
| 出版日期 | 2011-07-01 |
| 卷号 | 83期号:13页码:5309-5316 |
| 英文摘要 | a novel combined ion source based on a vacuum ultraviolet (vuv) lamp with both single photon ionization (spi) and chemical ionization (ci) capabilities has been developed for an orthogonal acceleration time-of-flight mass spectrometer (oatofms). the spi was accomplished using a commercial 10.6 ev krypton discharge lamp with a photon flux of about 10(11) photons s(-1), the ci was achieved through ion-molecule reactions with o(2)(+) reactant ions generated by photoelectron ionization at medium vacuum pressure (mvp). to achieve high ionization efficiency, the ion source pressure was elevated to 0.3 mbar and the photoionization length was extended to 36 mm. as a result, limits of detection (lods) down to 3, 4, and 6 ppbv were obtained for benzene, toluene, and p-xylene in mvp-spi mode, and values of 8 and 10 ppbv were obtained for toluene and chloroform, respectively, in spi-ci mode. as it is feasible to switch between mvp-spi mode and spi-ci mode rapidly, this system is capable of monitoring complex organic mixtures with a wide range of ionization energies (ies). the analytical capacity of this system was demonstrated by measuring dehydrogenation products of long-chain paraffins to olefins through direct capillary sampling and drinking water disinfection byproducts from chlorine through a membrane interface. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, analytical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | electron-impact ionization ; atmospheric-pressure photoionization ; chain-paraffin dehydrogenation ; online gas-analysis ; organic-compounds ; photoelectron ionization ; multiphoton ionization ; photoemission electron ; thermal-decomposition ; laser-desorption |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000292280900041 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142800]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hua, Lei,Wu, Qinghao,Hou, Keyong,et al. Single Photon Ionization and Chemical Ionization Combined Ion Source Based on a Vacuum Ultraviolet Lamp for Orthogonal Acceleration Time-of-Flight Mass Spectrometry[J]. analytical chemistry,2011,83(13):5309-5316. |
| APA | Hua, Lei.,Wu, Qinghao.,Hou, Keyong.,Cui, Huapeng.,Chen, Ping.,...&Li, Haiyang.(2011).Single Photon Ionization and Chemical Ionization Combined Ion Source Based on a Vacuum Ultraviolet Lamp for Orthogonal Acceleration Time-of-Flight Mass Spectrometry.analytical chemistry,83(13),5309-5316. |
| MLA | Hua, Lei,et al."Single Photon Ionization and Chemical Ionization Combined Ion Source Based on a Vacuum Ultraviolet Lamp for Orthogonal Acceleration Time-of-Flight Mass Spectrometry".analytical chemistry 83.13(2011):5309-5316. |
入库方式： OAI收割
来源：大连化学物理研究所
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。