电极结构及电场方式对激光增强电离信号收集的影响  

EFFECTS OF SIGNAL COLLEGTION ON ELECTRODE CONFIGURATIONS AND ELECTRIC FIELD MODE IN LASER ENHANCED IONIZATION SPECTROMETRY

作　　者：杜继贤[1] 陈杭亭[1] 李华成[1] 潘利华[1] 

机构地区：[1]中国科学院长春应用化学研究所

出　　处：《光谱学与光谱分析》1989年第2期8-11,27,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金

摘　　要：本文研究了几种类型电极,在垂直或水平电场方式下对火焰中钠原子的激光增强电离(LEI)信号的收集作用,并观察了诸参数(激光束位置、电极高度、电极间距)在不同电场方式下对信号的影响。The laser-enhanced ionization (LEI) signal results from a change in flame impedance produced by collisional ionizaiton of laser excited anaiyte atoms. The purpose of this investigation was to the effects on LEI signal collection with different species of electrode cofifigurations in the vertical or the horizontal electric field system, and the effects of arameters on the LEI signal have been observed.

关 键 词：电极结构 电场 激光增强电离 信号 

分 类 号：O657.38[理学—分析化学]