| 甲胺紫外光解REMPI质谱研究 |
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| 引用本文： | 张霞,孔祥和,王召兵,刘涛.甲胺紫外光解REMPI质谱研究[J].量子电子学报,2008,25(5):523-527. |
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| 作者姓名： | 张霞 孔祥和 王召兵 刘涛 |
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| 作者单位： | 1. 曲阜师范大学激光研究所,山东,曲阜,273165
2. 曲阜师范大学物理工程学院,山东,曲阜,273165 |
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| 基金项目： | 曲阜师范大学校科研和教改项目 |
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| 摘 要： | 实验研究了233～243 nm激光波长范围内甲胺分子的REMPI质谱特性,在λ=240 nm处,分析了质谱中M30、M28、M15三种离子信号强度随激光能量的变化关系.得到他们电离的光强指数.理论上分别用密度泛函量化计算方法分析了不同解离通道热焓的变化.实验分析与理论结果相对比,对这三种离子进行了归属.
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| 关 键 词： | 光谱学 共振增强匀光光子电离 质谱 热焓 密度泛函 |
| 收稿时间： | 2007/12/13 |
UV photolysis REMPI mass spectrum of methylamine |
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| ZHANG Xia,KONG Xiang-he,WANG Zhao-bing,LIU Tao.UV photolysis REMPI mass spectrum of methylamine[J].Chinese Journal of Quantum Electronics,2008,25(5):523-527. |
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| Authors: | ZHANG Xia KONG Xiang-he WANG Zhao-bing LIU Tao |
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| Affiliation: | ZHANG Xia KONG Xiang-he WANG Zhao-bing LIU Tao (1 Institute of Laser Research,Qufu Normal University,Qufu 273165,China,2 College of Physical Engineering,China) |
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| Abstract: | Ultraviolet photolysis of methylamine was carried out by 233～243 nm laser. The resonant enhanced multi-photon ionization(REMPI)mass spectrum was obtained and studied. The laser power dependences for major peaks M30,M28,M15 were measured,and compared with calculated entropies density functional theory using quantum calculation. Thus those three major fragments were identified. |
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| Keywords: | spectroscopy resonant enhanced multi-photon ionization mass spectrum enthalpy density functional theory |
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