引用本文:李春玉,滕加泉,李艳萍,夏京,张奇磊,何涛.挥发性有机物在线监测系统在饮用水源地水体监测中的应用[J].环境监控与预警,2018,10(2):15-18
LI Chun-yu,TENG Jia-quan,LI Yan-ping,XIA Jing,ZHANG Qi-lei,HE Tao.Application of Volatile Organic Compounds Online Monitoring System in Water Body Monitoring of Drinking Water Sources[J].Environmental Monitoring and Forewarning,2018,10(2):15-18
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挥发性有机物在线监测系统在饮用水源地水体监测中的应用
李春玉,滕加泉,李艳萍,夏京,张奇磊,何涛
常州市环境监测中心,江苏 常州 213001
摘要:
水中挥发性有机物(VOCs)在线监测系统,实现了超声雾化法气液分离,并结合冷阱捕集解析技术,利用气相色谱质谱法监测水中VOCs。该法在25种VOCs质量浓度0.5~20 μg/L范围内线性良好,线性相关系数均>0.990,检出限为0.10~0.51 μg/L,测定下限为0.40~2.04 μg/L。通过与实验室法的比对,说明该法可达实验室监测仪器同等水平。
关键词:  挥发性有机物  饮用水源地  在线监测  超声雾化  应用
DOI:
分类号:O657.7+1;X832
文献标识码:B
基金项目:国家重大仪器专项基金资助项目(2012YQ06002707)
Application of Volatile Organic Compounds Online Monitoring System in Water Body Monitoring of Drinking Water Sources
LI Chun-yu,TENG Jia-quan,LI Yan-ping,XIA Jing,ZHANG Qi-lei,HE Tao
Changzhou Environmental Monitoring Center,Changzhou,Jiangsu 213001,China
Abstract:
The set of volatile organic compounds (VOCs) online monitoring system realized the separation of the gas-liquid by ultrasonic nebulization and used the combination of the cold trap technique was used for analysis of the VOCs in water by gas chromatography-mass spectrometry. The calibration curve of 25 VOCs were liner in the range of 0.5~20 μg/L with correlation coefficients more than 0.990. The limits of detection and quantitation were in the range of 0.10~0.51 and 0.40~2.04 μg/L. Through the laboratory test comparison, the method was proved to achieve the same level of laboratory monitoring instruments.
Key words:  Volatile organic compounds  Drinking water source  Online monitoring  Ultrasonic nebulization  Application