Mass Spectrometric Detection of Gaseous Hydrogen Peroxide in Ambient Air Using Dielectric Barrier Discharge as an Excitation Source
Mass Spectrometric Detection of Gaseous Hydrogen Peroxide in Ambient Air Using Dielectric Barrier Discharge as an Excitation Source
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DOI：
10.1246/cl.2009.520
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发表时间：
2009-06-05
影响因子：
1.6
通讯作者：
Hiraoka, Kenzo
中科院分区：
文献类型：
--
作者：
Chen, Lee Chuin;Suzuki, Hiroaki;Hiraoka, Kenzo
环境空气中气态过氧化氢（H2 O2）的实时检测是关系到公共安全的重要课题。我们研制了一种利用介质阻挡放电作为亚稳态稀有气体原子激发源的H_2O_2气体质谱检测系统。Penning电离环境空气产生的O-2（-）离子形成稳定的团簇离子[H2 O2 + O-2]（-），其被正交飞行时间质谱仪检测。未观察到空气中水分的干扰。
Real-time detection of gaseous hydrogen peroxide (H2O2) in ambient air is an important subject for public safety and security. We have developed a mass spectrometric detection system for gaseous H2O2 using dielectric barrier discharge as the excitation source for metastable rare gas atoms. The O-2(-) ion produced by Penning ionization of ambient air forms a stable cluster ion [H2O2 + O-2](-) which is detected by an orthogonal time-of-flight mass spectrometer. No interference by the moisture in the air was observed.