紫外吸收光谱法监测硫化氢浓度的实验研究  

STUDY ON MEASURING CONCENTRATION OF H_2S WITH UV ABSORPTION SPECTROMETRY

作　　者：邹芸芸[1] 蔡小舒[1] 赵琴[1] 孟国鑫[1] 

机构地区：[1]上海理工大学颗粒与两相流测量技术研究所,上海200093

出　　处：《环境工程》2009年第1期89-92,共4页Environmental Engineering

基　　金：教育部博士学科点专项科研基金项目(20060252003);上海市教委基金(05EZ11)

摘　　要：紫外吸收光谱法是利用不同气体在紫外波段对光具有选择吸收的特性来测量排放烟气中的气体成分和浓度。基于这种方法设计出一套能够实时、在线监测硫化氢的实验装置。在常温常压状态下,通过对测量的一次光谱进行分析,计算出硫化氢的标准吸收截面,选择合适的数据处理方法,减小浓度计算时的误差,可得出硫化氢的实时浓度值。UV absorption spectrometry is a method for measuring the gas component and its concentration by the characteristic of selective absorption for light in the UV-VIS region. Based on this method a set of new experimental devices for on-line monitoring of hydrogen sulfide is designed. At normal pressure and temperature,a standard absorption cross-section can be calculated through analyzing one absorption spectrum,selecting suitable data processing methods,thus obtaining the real-time concentrations of hydrogen sulfide.

关 键 词：紫外吸收光谱法 硫化氢 在线监测 最小二乘法 

分 类 号：X831[环境科学与工程—环境工程]