[氮氧化物分析仪]氮氧化物分析仪操作方法
氮氧化物分析仪操作方法是今天给大家带来的知识。氮氧化物分析仪利用化学发光原理分析气态样品中的 NO 或 NOX 浓度。在 NO 模式下,该方法基于臭氧和一氧化氮 (NO) 之间的化学发光反应,产生二氧化氮 (NO 2 ) 和氧气。
该反应产生的 NO 2中约有 10%处于电子激发态。从该状态到正常状态的转变产生强度与进入反应室的NO 2的质量流量成比例的光。通过光电二极管管和相关的放大电子设备测量光。NOX模式下,NO加NO 2如上确定,然而,样品首先通过内部 NO 2到 NO 转换器,该转换器将样品中的 NO 2转换为 NO。然后,所得反应与 NOX 的总浓度成正比。整个样品,在反应室之前,保持在 65°C 的温度。

氮氧化物分析仪设计用于连续测量气态样品中氮氧化物的总浓度。气态样品可以是环境空气、来自内燃机的废气或来自燃烧过程的废气。对于质量排放的直接计算,可能需要湿测量方法。
氮氧化物分析仪操作方法已经告诉了大家,有需要了解氮氧化物分析仪的朋友可以来逸云天咨询了解,我们有专业的人员与您解答。
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