Ethylene Oxide (C2H4O)

Ethylene oxide (EtO) is used in the large-scale production of chemicals, as a fumigant in certain agricultural products, as a sterilizing agent for medical devices, and can be found in the atmosphere as a pollutant emitted from natural gas, cigarette smoke and diesel exhaust. Despite its relatively common usage, the Occupational Safety and Health Administration (OSHA), the National Institute for Occupational Safety and Health (NIOSH), the International Agency for Research on Cancer (IARC), the American Conference for Governmental Industrial Hygienists (ACGIH), the German MAK commission and others, have classified it as a toxic substance with proven mutagenic properties, solidifying its position as a carcinogen. While the mutagenic properties of Ethylene Oxide have been known since the 1940s, the regulatory landscape around emissions and exposure limits has evolved with the publication of the most recent National Air Toxics Assessment (NATA) in the US.

Using innovative next-generation laser technology, Picarro has developed a family of CRDS-based analyzers capable of measuring ppt levels of EtO in real time (< 2 seconds) and without the need for chromatographic separation or pre-concentration.  

分析仪

产品 测量 应用

G2910 气体浓度分析仪

  在 Picarro 环氧乙烷(EtO)气体浓度分析仪系列中,G2910 烟气及室内空气质量分析仪被配置为在排放源处测量 EtO。G2910 支持在宽浓度范围内测量复杂的气体混合物,同时不影响精度和稳定性。在需要准确实时量化 EtO 排放的应用中,Picarro 比傅里叶变换红外光谱(FTIR)和气相色谱(GC)等传统技术更胜一筹。对烟囱、减排系统、灭菌室、曝气仓库及建筑物通风设施的 EtO 量化变得非常简单。

G2920 气体浓度分析仪

在 Picarro 的环氧乙烷 (EtO) 气体浓度分析仪系列中,G2920 环境分析仪采用的平台支持长期监测围栏处的逸散性排放和社区环境中的EtO浓度。在需要准确、实时量化 EtO 排放的应用中,Picarro 优于傅里叶变换红外光谱 (FTIR) 或气相色谱 (GC) 等传统技术。工业设施逸散性 EtO 排放的量化从未如此简单。

  • 同类最佳的灵敏度(ppt 级检出限),经过专门设计,可满足最严苛的监管要求
  • 实时测量可用于实时排放检测(秒)
  • 卓越稳定性及连续运行可最大限度缩短停机时间并减少数据缺失
  • 操作简便,无需使用任何耗材,无需进行预先富集,从而降低拥有成本
  • 占地空间小,可在几分钟内完成安装,可部署于多种新应用场景

优质不锈钢部件,80℃ 的工作温度以及小体积的关键气体通道,降低了 C2H4O 分子吸附到通道表面的可能性,缩短了测量响应时间(< 10 秒),消除了测量偏差。此外,这款分析仪还能高精度测量二氧化碳(CO2)、甲烷(CH4)、水汽(H2O)和其他挥发性有机化合物(VOC),从而确保仪器无干扰运行。该分析仪采用便携式结构,方便进行固定或移动部署(可使用机架),从而实现迄今为止尚不可行的现场活动。该分析仪增设有多端口进样系统,可对各种来源的空气质量进行表征,超越现有技术(如 FTIR)限制,扩大服务范围。随着 G2920 的加入,Picarro 现在为服务提供商、监管机构和研究人员提供一系列易于集成到新一代 CEMS、烟囱测试、围栏以及室内外环境空气质量监测系统的分析仪。

了解有关环氧乙烷分析仪系列的更多信息