大气H2O2测定方法的研究进展

Advances in Atmospheric Hydrogen Peroxide Determination Method

近年来,过氧化氢(H2O2)作为对流层大气中的一种重要污染物引起了许多研究者的关注。本文对近年来使用较为广泛的H2O2的测定方法及其各自优缺点进行了综述。着重介绍了螺旋管吸收法、膜扩散吸收法、冷阱捕集法、鼓泡吸收法以及雾液吸收法等H2O2的采样方法。同时还介绍了傅立叶红外法、分光光度法、化学发光法、滴定法、酶化法、荧光法等H2O2的分析方法。每种采样和分析方法都具有各自的优缺点,因此改进和优化H2O2采样和分析方法仍是今后大气H2O2研究的重点之一,该研究对准确分析大气中H2O2的浓度、了解H2O2在对流层大气中的化学过程非常重要。

Hydrogen peroxide is a kind of important pollutants in the troposphere. This work reviewed the progress on the sampling methods including solenoid absorption, membrane diffusion scrubber, cryogenic trap, impinger, and fog liquid absorption for hydrogen peroxide. The analytical techniques for hydrogen peroxide, such as Fourier infrared method, spectrophotometry, chemiluminescence, titration, and enzymatic method, were also discussed in this work. Modification of method is very important for an accurate analysis of the hydrogen peroxide concentration, because each sampling and analytical methods has its advantages and disadvantages. The study of the sampling methods and analyti-cal techniques is elementary for understanding the tropospheric chemistry of hydrogen peroxide.