Investigation on Production of Cluster Ions Using Surface-Assisted Laser Desorption/Ionization Mass Spectrometry
文献类型：期刊论文
| 作者 | Nie Long-Hui1; Wang Wei-Guo2 |
| 刊名 | CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 45期号:6页码:851-855 |
| 关键词 | Surface-assisted laser desorption/ionization mass spectrometry Polycyclic aromatic Ionization pi-pi bond interaction Spatial barrier |
| 英文摘要 | Surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) has become an indispensable tool in analysis of macromolecule and small molecule in solid and liquid samples. However, there were few studies focusing on the ionization mechanisms especially for the small molecules. In this work, the compounds of pyrene, coronene and rubrene with similar molecular structures were used to investigate the ionization mechanism via SALDI-MS. Additionally, the effect of laser power on product ions was also investigated. It was found that strong cluster ions peaks nM(+) (M = pyrene, coronene) were observed for pyrene and coronene, and daughter ions of coronene by loss of C2H2 were also observed. On the contrary, no cluster ion was obtained for rubrene, only daughter ions with the losses of nC(6)H(5) (n = 1, 2, 3) were acquired. Finally, the ionization mechanism was discussed. The formation of clusters of pyrene and coronene was attributed to the interaction of pi-pi bonds. For rubrene, the spatial barrier weakened the interaction of pi-pi bonds because the four phenyl groups were not on the same plane of skeleton structure, thus impeding the formation of cluster ions. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Analytical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | MOLECULAR-WEIGHT DISTRIBUTIONS ; DESORPTION IONIZATION ; PETROLEUM ASPHALTENES ; SALDI-MS ; TOF-MS ; TIO2 NANOCRYSTALS ; NANOPARTICLES ; MATRIX ; SIZE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000406222800005 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/151908]  |
| 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.Hubei Univ Technol, Dept Mat & Chem Engn, Wuhan 430068, Hubei, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nie Long-Hui,Wang Wei-Guo. Investigation on Production of Cluster Ions Using Surface-Assisted Laser Desorption/Ionization Mass Spectrometry[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2017,45(6):851-855. |
| APA | Nie Long-Hui,&Wang Wei-Guo.(2017).Investigation on Production of Cluster Ions Using Surface-Assisted Laser Desorption/Ionization Mass Spectrometry.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,45(6),851-855. |
| MLA | Nie Long-Hui,et al."Investigation on Production of Cluster Ions Using Surface-Assisted Laser Desorption/Ionization Mass Spectrometry".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 45.6(2017):851-855. |
入库方式： OAI收割
来源：大连化学物理研究所
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