用改进过的激光拉曼光谱仪测定气相反应过程中产生的瞬态中间体(英文)

Determination of Transient Intermediates Produced during Gas Phase Reaction by Using the Improved Laser Raman Spectrometer

改进激光拉曼光谱仪的样品池为石英玻璃制作的连续流动的气体，样品室，用紫外光束射入样品室来激活气体在垂直于紫外光束和探测激光束的方向来探测被瞬态中间体散射的拉曼散射光；交流（A·C）放电电极对以适当的间隙装在上述样品室上；由激光拉曼光谱仪记录下的拉曼散射光谱频移图上，根据待测物的特征频率，辨认和确定气相反应过程中所产生的瞬态中间体。这为光物理、光化学、等离子体化学等提供可靠的、直接的探测方法。

A sampler of silex glass was developed for a Laser Raman Spectrometer, the gas was allowedto flow through the sampler, and then the ultraviolet beams were used to illuminate the sampler to activatethe gas. Raman scattered beams of the transient imtermediates were determined in the directi0n which are vertically cross the ultraviolet beams at their intersection. The alternation current (A. C ) dischargre elecrodeswere installed into mentioned sampler with a proper gap. The profiles of Raman spectra were recorded by theLaser Raman Spectrometer. According to the characteristic frequency on the Raman profile, the transient intermediates produced during the reaction were determined. A reliable and direct method was proposed forPhotophysical,photochemistry, and plasma chemistry,etc.