摘要
介绍了一套应用于上海奉贤化工区边界站的空气36种VOCs在线监测系统。该系统筛选了美国EPA-PAMS、TO15部分VOCs指标,采用GR Tracer预浓缩仪对大气中痕量VOCs进行浓缩富集,然后快速热脱附,经双柱双FID气相色谱仪进行定性定量分析。检测结果显示,系统的性能指标检出限<0. 5 ppb,校准曲线线性R2> 0. 995,在10 ppb浓度的精密度<3%,系统各项技术性能指标均满足并略优于《上海市重点产业园区空气特征污染自动监测系统验收技术要求》。
This paper introduced a set of36kinds of VOCs online air monitoring system,which was applied in Shanghai Fengxian Chemical Industrial Park.The system selected part of VOCs index from the US EPA-PAMS,TO15.A GR Tracer concentrator was used to concentrate the trace VOCs in the atmosphere,and then quickly heat desorption,and then detected by a double column double FID gas chromatograph.The test result show that the performance of the system was detection limit<0.5ppb,linear calibration curve R2>0.995,the precision<3%at the10ppb concentration.All of the technical indexes met and slightly better than the Technical Acceptance Requirements for Automatic Monitoring System in Shanghai Industrial Zone.
作者
苏爱华
Su Aihua(Shanghai Fuguan Environmental Technology Co., Ltd., Shanghai 200437, China)
出处
《环境科学与管理》
CAS
2018年第11期93-97,共5页
Environmental Science and Management
作者简介
苏爱华(1982-),女,硕士,中级工程师,研究方向:VOC在线监测。
