| 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） |
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| Application of Volatile Organic Compounds Online Monitoring System in Water Body Monitoring of Drinking Water Sources |
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LI Chun-yu，TENG Jia-quan，LI Yan-ping，XIA Jing，ZHANG Qi-lei，HE Tao
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Changzhou Environmental Monitoring Center，Changzhou，Jiangsu 213001，China
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| 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 |
