便携式GC-MS用于水中挥发性有机物的应急监测
Emergency Monitoring of Volatile Organic Compounds in Water by Portable GC-MS
摘要: 为建立快速有效的应急监测手段，利用顶空进样结合便携式气质联用仪开发水中25种挥发性有机物的原位检测方法，得到25种挥发性有机物的回收率在80%~120%之间，线性范围在0.4~39.8 μg/L以内，线性相关系数均大于0.99，相对标准偏差(n = 6)均在20%以内，方法的检出限在0.20~1.36 μg/L之间，满足质量控制要求。将便携式气质联用仪与台式气质联用仪进行比对，结果显示便携式气质联用仪方法灵敏度略低于台式气质联用仪，但分析速度显著优于台式气质联用仪。在环境水样中检出低浓度挥发性有机物，证明该方法可以进行实际应用。原位检测方法的建立解决了传统方法的不足，实现了现场对污染物的快速定性定量，为应急监测提供了有力的技术支撑。
Abstract: In order to develop a rapid and effective emergency monitoring method, the paper uses headspace sampling/portable GC-MS method for developing the in-situ testing method of 25 volatile organic compounds in water. The recovery of 25 volatile organic compounds ranged from 80% to 120%, the linear range was from 0.4 to 39.8 ug/L, the linear correlation coefficient was greater than 0.99, and the relative standard deviation (n = 6) was 20%. The detection limit of the method is between 0.20 ug/L - 1.36 ug/L, which meets the requirements of quality control. Comparing portable gas chromatography mass spectrometer with desktop gas chromatography mass spectrometer, the result shows that the precision of portable gas chromatography mass spectrometer is slightly lower than that of desktop gas chromatography mass spectrometer, but the analysis speed is better than that of desktop gas chromatography mass spectrometer. The detection of low concentration volatile organic compounds in environmental water samples proves that the analysis can be applied in practice. The development of in-situ testing method solves the shortcomings of traditional methods, realizes the rapid qualitative and quantitative analysis of pollutants in the field, and provides strong technical support for emergency monitoring.
文章引用：沈毅, 许燕冰, 应方, 陈欢, 周姗. 便携式GC-MS用于水中挥发性有机物的应急监测[J]. 环境保护前沿, 2019, 9(2): 203-214. https://doi.org/10.12677/AEP.2019.92030

参考文献

[1] 陈瑶, 辛志伟, 付军, 等. 基于新环境保护法要求下的化工园区水环境管理政策[J]. 化工环保, 2017, 37(1): 110-115.
[2] 朱蓓, 肖军. 德国工业园可持续发展特征及其管理政策[J]. 环境科学与技术, 2008, 31(3): 140-144.
[3] 赵艳民, 秦延文, 郑丙辉, 等. 突发性水污染事故应急健康风险评价[J]. 中国环境科学, 2014, 34(5): 1328-1335.
[4] 范慧群. 便携式气质联用仪在应急监测中的应用[J]. 环境监测管理与技术, 2011(S1): 66-69.
[5] 李晓旭, 刘立鹏, 马乔, 等. 便携式气相色谱-质谱联用仪的研制及应用[J]. 分析化学, 2011, 39(10): 1476-1481.
[6] 封跃鹏. 便携式和台式气质联用仪测定水中挥发性有机物的比对研究[J]. 质谱学报, 2014, 35(2): 179-184.
[7] 唐雪惠, 李朝晖, 邓凤妮. 气质联用法测定饮用水中29种挥发性有机物[J]. 化学研究与应用, 2010, 22(7): 939-942.
[8] Bednar, A.J., Russell, A.L., Hayes, C.A., et al. (2012) Analysis of Munitions Constituents in Groundwater Using a Field-Portable GC-MS. Chemosphere, 87, 894-901. [Google Scholar] [CrossRef] [PubMed]
[9] Cropper, P.M., Overson, D.K., Cary, R.A., et al. (2017) Development of the GC-MS Organic Aerosol Monitor (GC-MS OAM) for In-Field Detection of Particulate Organic Compounds. Atmospheric Environment, 169, 258-266. [Google Scholar] [CrossRef] 
[10] 付柳淑, 王艳萍, 马胜. 便携式气相色谱-质谱联用仪结合吹扫捕集快速检测水中挥发性有机物的方法研究[J]. 中国化工贸易, 2015(30): 153-153, 155.
[11] 肖洋, 王新娟, 韩伟, 等. 顶空进样-便携式气相色谱-质谱法快速测定水中挥发性有机物[J]. 理化检验-化学分册, 2016, 52(7): 825-827.
[12] 吕天峰, 许秀艳, 梁宵, 付强, 张颖, 张宝. 便携式GC-MS在挥发性有机物应急监测中的应用[J]. 分析测试学报, 2009, 28(1): 116-119.