VOCs在线监测远程质量控制可行性研究

薛京洲; 李勇; 杨任; 何仁江

引用本文:	薛京洲,李勇,杨任,何仁江.VOCs在线监测远程质量控制可行性研究[J].环境监控与预警,2024,(3):49-53
	XUE Jingzhou,LI Yong,YANG Ren,HE Renjiang.Feasibility Study on Remote Quality Control of VOCs Online Monitoring System[J].Environmental Monitoring and Forewarning,2024,(3):49-53

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VOCs在线监测远程质量控制可行性研究
薛京洲¹，李勇^2*，杨任³，何仁江^4,5
1.四川省泸州生态环境监测中心站，四川泸州 646000；2.四川省宜宾生态环境监测中心站，四川宜宾 644000；3.常州磐诺仪器有限公司，江苏常州 213000；4.环境健康效应及风险评估泸州市重点实验室，四川泸州 646000；5.西南医科大学公共卫生学院，四川泸州 646000

摘要:

地表水水质自动监测要求对主要监测指标具备远程质量控制功能，而对挥发性有机物（VOCs）在线监测没有明确要求。采用自行设计的标准溶液储存装置和一套吹扫捕集-气相色谱-氢火焰离子化检测器/电子捕获检测器（P＆C-GC-FID/ECD）在线监测系统对水中19种VOCs组分开展了远程标准溶液测试。结果表明，19种VOCs组分在线加标回收率为88.8%～103.8%，在线多点线性测试相关系数为0.995 9～0.999 7，连续16 d标准溶液测试的示值误差范围为-18.91%～21.91%；VOCs在线监测系统远程质量控制是可行的，可实时监控仪器性能，有效预警预报水质状况。

关键词: 挥发性有机物气相色谱自动监测远程质控

DOI：DOI：10.3969/j.issn.1674-6732.2024.03.008

分类号:X832

基金项目:泸州市人民政府-西南医科大学科技战略合作项目（2023LZXNYDJ050）；西南医科大学校级科研项目（2021ZKQN004）

Feasibility Study on Remote Quality Control of VOCs Online Monitoring System

XUE Jingzhou¹， LI Yong^2*， YANG Ren³， HE Renjiang^4,5

1.Sichuan Luzhou Ecological Environment Monitoring Center， Luzhou， Sichuan 646000， China； 2.Sichuan Yibin Ecological Environment Monitoring Center， Yibin， Sichuan 644000， China； 3.Changzhou Panna Instrument Co.， Ltd.， Changzhou， Jiangsu 213000， China； 4.Environmental Health Effects and Risk Assessment Key Laboratory of Luzhou， Luzhou，Sichuan 646000， China； 5.School of Public Health of Southwest Medical University， Luzhou， Sichuan 646000， China

Abstract:

The automatic monitoring of surface water quality requires the main monitoring indicators to have remote quality control function， while there is no clear requirement for online monitoring of VOCs. This article conducted remote standard solution testing on 19 VOCs components in water using a self designed standard solution storage device and an online monitoring system consisting of a purge capture gas chromatography hydrogen flame ionization detector/electron capture detector （P&T-GC-FID/ECD）. The experimental results show that the online spiked recovery rates of 19 VOCs components are 88.8%～103.8%， and the correlation coefficient range of online multi point linear testing is 0.995 9～0.999 7. The error range of standard solution testing for 16 consecutive days is -18.91%～21.91%. The results show that the remote quality control of the VOCs online monitoring system is feasible， which can achieve real time monitoring of instrument performance and effective warning and prediction of water quality.

Key words: Volatile organic compounds Gas chromatography Automatic monitoring Remote quality control