FAVOR-HALO: Fast Analysis of Volatile ORganics with gas chromatography/mass spectrometry (GC/MS) on HALO

FAVOR-HALO：在 HALO 上使用气相色谱/质谱 (GC/MS) 快速分析挥发性有机物

• 批准号: 47182152
• 负责人: Dr. Robert Wegener
• 金额: --
• 依托单位: Institut für Bio- und Geowissenschaften (IBG)
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/47182152?language=en
• 关键词: FAVOR; HALO; Fast; Analysis; Volatile

We propose to measure volatile oxygenated and nonoxygenated organic compounds aboard HALO using a novel fast online gas chromatograph / mass spectrometer. Volatile organic compounds are important local and regional atmospheric pollutants because of their potential impacts on human health, crops and plants by forming photochemical oxidants. Oxygenated volatile organic compounds are directly emitted into the troposphere or formed from nonoxygenated compounds. Despite their strong influence on atmospheric processes, concentration data of these species are still rare due to analytical difficulties. During the OMO demonstration mission, the HALO aircraft will sample rapidly convected air parcels from polluted regions and more processed air from North America with oxygenated volatiles being enriched relative to their precursors. Measuring volatile organic compounds in the free troposphere during the OMO demonstration mission will help to constrain radical chemistry in different air parcels, evaluate the extent of photochemical processing of air parcels or identify air parcels from different origin.

我们建议使用一种新型的快速在线气相色谱/质谱仪测量挥发性含氧和非含氧有机化合物登上HALO。挥发性有机化合物是重要的本地和区域大气污染物，因为它们通过形成光化学氧化剂对人类健康、农作物和植物具有潜在影响。含氧挥发性有机化合物直接排放到对流层或由非含氧化合物形成。尽管它们对大气过程有很大影响，但由于分析困难，这些物种的浓度数据仍然很少。在OMO演示使命期间，HALO飞机将对来自污染地区的快速对流空气包和来自北美的经过更多处理的空气进行采样，其中含氧挥发物相对于其前体而言更加富集。在OMO示范使命期间测量自由对流层中的挥发性有机化合物将有助于限制不同气团中的自由基化学，评估气团的光化学处理程度或识别不同来源的气团。