基于LabVIEW的共振增强双光子电离-飞行时间质谱数据采集系统  

Data acquisition system for resonance-enhanced 2 - photon ionization time-of-flight mass spectrometry based on Lab VIEW

作　　者：谢彦[1] 王丙星[1] 袁丽威[1] 王利[1] 白吉玲[1] 

机构地区：[1]中国科学院大连化学物理研究所分子反应动力学国家重点实验室,辽宁大连116023

出　　处：《计算机与应用化学》2003年第5期571-573,共3页Computers and Applied Chemistry

基　　金：中国科学院知识创新方向性资助项目(KGCX2-201-3)

摘　　要：在用共振增强双光子电离-飞行时间质谱技术在线检测多相催化反应的实验过程中,需要建立一套高速数据采集、处理及分析系统。该系统软件部分用图形化编程语言LabVIEW编写,可以完成对飞行时间质谱及其峰面积实时采集,适合于连续监测气相反应的变化过程。本文介绍了该系统的硬件组成和软件设计,并在实验过程中得到了较好的应用。在实时检测甲烷无氧芳构化反应的实验中,观察到了催化反应产物苯在诱导期间的变化。A high-speed data sampling, processing and analyzing system was developed for on-line real time detection of the heterogeneous catalysis by resonance-enhanced 2 - photon ionization time-of-flight mass spectrometry. This system, programmed by graphic language LabVIEW, could be used to measure mass spectroscopy and relevant peak area synchronously, so it is favorable for continuously monitoring gas-phase reaction. The detail discussions on the design of the hardware and software are given in this paper. The behavior of species on the induction period of methane dehydro-aromatization is traced by RE2PI-TOF-MS, which indicates this system have well utility for experiments.

关 键 词：LABVIEW 共振增强双光子电离 飞行时间质谱 数据采集系统 分析化学 甲烷 无氧芳构化反应 苯 

分 类 号：O625.11[理学—有机化学] O657.63[理学—化学]