硫化氢分子的共振增强多光子电离谱  

Resonance enhanced multiphoton ionization spectrum of H_2S molecular

作　　者：夏柱红[1] 魏杰[1] 章莲蒂 张柏林 张冰 

机构地区：[1]中国科学院安徽光学精密机械研究所激光光谱学开放实验室,合肥230031

出　　处：《原子与分子物理学报》2000年第2期228-232,共5页Journal of Atomic and Molecular Physics

摘　　要：利用激光质谱法在 4 2 3～ 4 62nm范围内获得了环境污染气体硫化氢分子的共振增强多光子电离 (REMPI)谱 ,在其REMPI谱中共观察到 8个谱峰 ,其中有两个谱峰是新发现的 ,并对它们进行了试探性标识。另外还从多个角度对硫化氢分子的多光子电离解离 (MPID)机理进行了分析 ,推论出其MPID过程应属于母体离子碎裂模式。In this paper we obtained the Resonance Enhanced Multiphoton Ionization(REMPI) spectrum of environmental pollution gas H 2S molecular by laser mass spectrometry in the range of 423～462 nm. We observed eight peaks in the REMPI spectrum, among which two peaks are observed for the first time, and both of them are tentatively assigned. In addition, we have analyzed the multiphoton ionization dissociation(MPID) mechanism of H 2S from several aspects, and conclude that its MPID process belongs to parent ion fragmentation mechanism.

关 键 词：硫化氢 共振增强 飞行时间质谱 多光子电离谱 

分 类 号：O561.3[理学—原子与分子物理] O613.2[理学—物理]