| 甲胺分子共振增强多光子电离的波长依赖性 |
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| 引用本文： | 方黎 张冰. 甲胺分子共振增强多光子电离的波长依赖性[J]. 光学学报, 1997, 17(12): 638-1641 |
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| 作者姓名： | 方黎 张冰 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所 |
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| 摘 要： | 使用激光多光子电离质谱技术，研究了甲胺分子在４２５ｎｍ－４９５ｎｍ波长范围内共振增强多光子电离碎裂过程，记录了母体离子和与碎片离子产额与波长的依赖关系。由于共振增强多光子电离母体离子与碎片离子谱的相似性，可用探测总离子信号的方法来替代单独的母离子探测，有效地提高痕量探测的灵敏度。
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| 关 键 词： | 甲胺 共振增强 多光子电离 波长依赖性 |
| 收稿时间： | 1996-12-31 |
Wavelength Dependence of Resonance Enhanced Multiphoton Ionization of Methylamine |
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| Fang Li Zhang Bing Liu Xiaojun Guo Wenyue Wei Jie Cai Jiye. Wavelength Dependence of Resonance Enhanced Multiphoton Ionization of Methylamine[J]. Acta Optica Sinica, 1997, 17(12): 638-1641 |
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| Authors: | Fang Li Zhang Bing Liu Xiaojun Guo Wenyue Wei Jie Cai Jiye |
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| Abstract: | Laser ionization mass spectrometry is used to study the wavelength dependence of resonance-enhanced multiphoton ionization (REMPI) of methylamine, and both the parent and fragment ion yields are recorded in the wavelength range of 425～495 nm. Similarities in the REMPI spectra of all the ions could lead to greater trace detection sensitivity if the total ion yield is concerned instead of only the parent ions. |
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| Keywords: | methylamine resonance enhanced multiphoton ionization mass spectrometry wavelength dependence of ion yields. |
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