RAPID: A Field Intercomparison of High-Resolution Proton-Transfer-Reaction Time-of-Flight Mass Spectrometers

该项目包括在2010年8月的BEACHON-ROCS（能量、气溶胶、碳、水、有机物和氮的生物-水-大气相互作用-落基山有机碳研究）野外活动中部署高分辨率质子转移-反应飞行时间质谱仪（HR-PTR-ToF MS）。这将是首次在野外战役中部署这种新型的、商业化的仪器。在ROCS期间，将在现场使用类似的HR-PTR-ToF质谱仪，并由商业仪器的开发人员操作。此外，各种其他有机微量气体分析仪将到位，构成一个全面的VOC相互比较研究，将允许详细评估HR-PTR-ToF质谱技术在实际现场条件下的操作特性。该仪器的快速响应时间和非常低的检测限使其非常适合在BEACHON-ROCS期间进行的VOC通量测量，从而对稀疏森林环境中生物源VOC排放及其随后的大气化学产生潜在的重要见解。将首次尝试使用HR-PTR-ToF质谱法测量森林中含氧挥发性有机化合物的通量。这项HR-PTR-ToF质谱部署将允许评估这种新的研究工具的性能，并开创其在大气化学领域研究中的应用。与制造商的密切互动将确保这项新技术在硬件、软件和数据分析方面的最佳进步。更广泛的影响还将包括一名研究生和一名技术人员首次参加大规模的实地活动。他们将与来自不同领域和机构的科学家以及HR-PTR-ToF ms的开发人员一起工作，这种获得的专业知识将极大地有利于他们的科学和学术生涯发展。

This project involves deployment of a High-Resolution Proton-Transfer-Reaction Time-of-Flight Mass Spectrometer (HR-PTR-ToF MS) during the August 2010 BEACHON-ROCS (Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics & Nitrogen - Rocky Mountain Organic Carbon Study) field campaign in the Manitou Forest, Colorado. This will be the first deployment of this type of novel, commercially available instrument in a field campaign. During ROCS a similar HR-PTR-ToF MS will be on site and operated by the developers of the commercial instrument. In addition, various other organic trace gas analyzers will be in place, constituting a comprehensive VOC intercomparison study that will allow detailed evaluation of the operation characteristics of the HR-PTR-ToF MS technology under real field conditions. The instrument's fast response time and very low detection limit makes it very suitable for the kinds of VOC flux measurements that will be conducted during BEACHON-ROCS yielding potentially significant insights into biogenic VOC emissions and their subsequent atmospheric chemistry in a sparse forest environment. Measurement of the fluxes of oxygenated VOCs from the forest using HR-PTR-ToF MS will be attempted for the first time.This HR-PTR-ToF MS deployment will allow evaluation of the performance of this new investigative tool and inaugurate its application in atmospheric chemistry field research. Close interaction with the manufacturer will ensure the optimal advancement of this novel technology with regard to the hardware, software, and data analytical aspects. Broader impacts also will include the exposure of a graduate student and a technician to a large field campaign for the first time. They will work with scientists from different fields and institutions as well as the developers of the HR-PTR-ToF MS. This acquired expertise will tremendously benefit their scientific and academic career development.