傅里叶红外法在污染源废气中氯化氢测定上的应用  

Determination of hydrogen chloride in stationary source exhaust gas by Fourier infrared method

作　　者：侯生贤 周新奇 陈磊 Hou Shengxian;Zhou Xinqi;Chen Lei(Shangqiu Ecological and Environmental Monitoring Center in Henan Province,Shangqiu 476000,China;Hangzhou Puyu Technology,Inc.,Hangzhou 300203,China)

机构地区：[1]河南省商丘生态环境监测中心,商丘476000 [2]杭州谱育科技发展有限公司,杭州300203

出　　处：《分析仪器》2024年第1期7-11,共5页Analytical Instrumentation

基　　金：浙江省重点研发项目资助(2022C02020)。

摘　　要：目前污染源废气中氯化氢的测定主要采用化验法,它存在样品时效性差,人力成本高,分析过程繁琐等缺点,而傅里叶红外技术(FTIR)具有灵敏度高,选择性好,无需采样,分析快速等优点。本实验基于傅里叶红外分析技术,分别使用3款不同厂家的便携式FTIR仪器测定了氯化氢,方法检出限为1mg/m3,测定下限为4mg/m3,以及对2个浓度水平的氯化氢标准气体进行了实验室内、实验室间精密度评估,并在垃圾焚烧厂和电子厂进行了实际样品检测精密度评估,测试结果无显著差异。且在水分存在条件下,相对示值误差均在5%以内。为固定污染源废气中的氯化氢检测提供了一种可靠高效的检测技术。At present,the determination of hydrogen chloride in pollution sources mainly uses assay method,which has the disadvantages of poor sample timeliness,high labor cost and tedious analysis process,while the Fourier infrared technique(FTIR)has the advantages of high sensitivity,good selectivity,no sampling and fast analysis.This experiment based on Fourier transform infrared analysis technology was used to measure hydrogen chloride using three portable FTIR instruments from different manufacturers.The detection limit was 1mg/m3,the lower limit of measurement was 4mg/m3.This experiment also evaluated the precision of hydrogen chloride standard gas at two concentration levels in laboratory and between laboratories,and evaluated the precision of actual sample detection in garbage incineration plants and electronic plants.The test results were not significantly different.Under the presence of moisture,the relative indication error is within 5%.This method provides a reliable and efficient detection technique for detecting hydrogen chloride in stationary source exhaust gases.

关 键 词：固定污染源 傅里叶红外技术 氯化氢 

分 类 号：X831[环境科学与工程—环境工程]