Development of Atmospheric Chemistry Instrumentation

三种检测系统已部分开发， 丹佛大学将进一步发展， 研究了他们确定流量的能力， 从大气层中进出的物种。 长光程紫外线（LPUV） 光谱将与长路径红外（LPIR） 光谱和用于确定各种物种的通量。 还将安装一个快速响应的现场总硫监测仪， 优化了响应速度和灵敏度。 它将被用 通过涡相关技术进行通量研究。 一些通量研究将与 与NCAR ASTER设施和阿贡国家实验室合作。 大气压流动系统、自由基检测仪 已经被开发出来，它显示出对浓度的响应， HO2和RO2自由基。 该装置，命名为PERCA（PEroxy 使用化学放大的自由基检测器）已被证明， 对许多碳氢化合物和含氧碳氢化合物有反应 过氧自由基高达C8。 使用PERCA，进一步的研究将 进行，以克服无法获得稳定的 校准。

Three detection systems which have been developed in part at the University of Denver will be further developed and investigated in terms of their ability to determine the flux of species to and from the atmosphere. Long-path UV (LPUV) spectroscopy will be coupled with long-path IR (LPIR) spectroscopy and used to determine the fluxes of various species. A fast response in-situ total sulfur monitor will also be optimized for response speed and sensitivity. It will be used for flux studies by means of the eddy-correlation technique. Some of the flux studies will be carried out in collaboration with the NCAR ASTER facility and Argonne National Laboratory. An atmospheric pressure flow system, free radical detector has been developed which is shown to respond to concentrations of HO2 and RO2 radicals. This apparatus, named PERCA (PEroxy Radical detector using Chemical Amplification) has been shown to respond to a number of hydrocarbon and oxygenated hydrocarbon peroxy radicals up to C8. Using the PERCA, further studies will be conducted to overcome the inability to obtain stable calibrations.