大气环境污染源中废气特征污染物的现场快速质谱定性方法研究  

Qualitative Determination of Exhaust Gas from Atmospheric Pollution Sources with On-site Rapid Mass Spectrometry Method

作　　者：张恒 刘雷[2] Zhang Heng;Liu Lei(Shandong Jinan Ecological Environment Monitoring Center,Jinan 250000,China;School of Municipal and Environmental Engineering,Shandong Jianzhu University,Jinan 250000,China)

机构地区：[1]山东省济南生态环境监测中心,山东济南250000 [2]山东建筑大学市政与环境工程学院,山东济南250000

出　　处：《环境科学与管理》2023年第5期120-124,共5页Environmental Science and Management

摘　　要：为准确分析大气环境污染源中废气特征污染物的种类和排放量,以降低污染物影响,文章研究了大气环境污染源中废气特征污染物的现场快速质谱定性方法。选用质谱分析系统与气象色谱仪等仪器,在采集大气环境污染源中废气样品后,利用质谱分析系统生成样品质谱图,通过所生成的质谱图与NIST库内所包含的各类物质质谱图相对比,定性分析样品;通过绘制标准曲线与外标法定量分析废气特征污染物。实验分析结果显示,研究区域内主要是烷系物废气特征污染物质量分数最高;通过分析特定污染物在不同时间条件下的浓度值能够有效降低污染物危害。In order to accurately analyze the types and emissions of characteristic pollutants in waste gases from atmospheric pollution sources,and to reduce their impact,this study investigated a field-based rapid mass spectrometry qualitative method for characteristic pollutant analysis of waste gases from atmospheric pollution sources.Mass spectrometry analysis system and gas chromatograph were selected.After collecting waste gas samples from atmospheric pollution sources,the mass spectrometry analysis system was used to generate sample mass spectra,and the sample was qualitatively analyzed by comparing the generated mass spectra with various substance mass spectra included in the NIST library.The characteristic pollutants in waste gases were quantitatively analyzed using standard curve drawing and external standard method.Experimental analysis results showed that the mass fraction of alkane waste gas characteristic pollutants was the highest in the study area.Effective reduction in the harm caused by pollutants can be achieved by analyzing the concentration values of specific pollutants under different time conditions.

关 键 词：大气环境 废气特征 污染物 质谱仪 定性分析 

分 类 号：X830.2[环境科学与工程—环境工程]