SGER: Development of a High Sensitivity Instrument for Direct and Fast Measurement of Glyoxal and Field Testing During BEARPEX

本文将研制一种基于激光诱导磷光（LIP）的新型仪器，用于气相乙二醛的直接、高灵敏度检测。这项工作将包括优化技术、校准、调查可能的干扰、现场测试和现场数据分析。在2007年生物圈对气溶胶和光化学实验的影响（BEARPEX）活动期间，将在加利福尼亚州内华达山脉山麓的Blodgett森林进行实地测试。在BEARPEX期间，将研究控制生物源排放与处理过的城市烟雾相互作用的化学过程，包括二次有机气溶胶（SOA）的形成。对有机氧化化学和SOA形成的更好理解可以改善对未来空气质量和气候变化的预测。该项目还将为研究生和博士后提供使用现场和实验室仪器和数据解释的教育和培训。项目负责人还参与将这项研究整合到化学和化学仪器类的课程材料中。

A new instrument based on Laser-Induced Phosphorescence (LIP) will be developed for the direct, high sensitivity detection of gas-phase glyoxal. The work will include optimization of the technique, calibration, investigation of possible interferences, field testing, and analysis of field data. Field tests will be performed at Blodgett Forest in the foothills of the Sierra Nevada, California, during the Biosphere Effects on Aerosols and Photochemistry Experiment (BEARPEX) campaign in 2007. Chemical processes controlling the fate of biogenic emissions interacting with a processed urban plume, including secondary organic aerosol (SOA) formation, will be investigated during BEARPEX. An improved understanding of organic oxidation chemistry and SOA formation could lead to improvements in predicting future changes in air quality and climate. This project will also provide education and training for graduate students and post-doctoral fellows in the use of field and laboratory instrumentation and data interpretation. The PI is also involved in integrating this research into the course material for chemistry and chemical instrumentation classes.