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| 題名: | Isomer differentiation by combining gas chromatography, selective self-ion/molecule reactions and tandem mass spectrometry in an ion trap mass spectrometer |
| 作者: | 吳慧芬;Wu, Hui-fen;Chuan, Yu-jie |
| 貢獻者: | 淡江大學化學學系 |
| 日期: | 2003-05-30 |
| 上傳時間: | 2009-12-01 |
| 出版者: | John Wiley & Sons |
| 摘要: | This study presents a novel, simple and rapid procedure for isomer differentiation by combining gas chromatography (GC), a selective self-ion/molecule reaction (SSIMR) and tandem mass spectrometry (MS/MS) in an ion trap mass spectrometer (ITMS). SSIMR product ions were produced from four isomers. For aniline, SSIMR induces the formation of the molecular ion, [M+H](+), [M+CH](+), adduct ions of fragments ([M+F](+), where F represents fragment ions) and [2M-H](+). 2 and 3-Picoline produce [M+H](+), [2M-H](+) and [M+F](+), while 5-hexynenitrile produces [M+H](+), [M+F](+) and [2M+H](+) ions. The proposed method provides a relatively easy, rapid and efficient means of isomer differentiation via a SSIMR in the ITMS. Typically, isomer differentiation can be achieved within several minutes. The superiority of the SSIMR technique for isomer differentiation over electronic ionization (EI) is also demonstrated. |
| 關聯: | Rapid Communications in Mass Spectrometry 17(10), pp.1030-1036 |
| DOI: | 10.1002/rcm.1016 |
| 顯示於類別: | [化學學系暨研究所] 期刊論文
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