Gas-Surface Chemistry and Analysis of Single Aerosol Particles

在该项目中，Baer将对单个气溶胶颗粒的形态和化学进行研究，该项目由地球科学理事会化学部门的实验物理化学计划和大气科学部的大气化学计划共同资助。为此研制了一种独特的气溶胶飞行时间质谱仪。单个气溶胶粒子将被红外激光蒸发，并被VUV激光电离，从而可以定量测定化学成分、涂层厚度和反应深度。所获得的数据将对物理化学和大气化学的研究人员有用。在这个项目中，将开发一种新的仪器，用于研究单个气溶胶颗粒的化学和形态。设想对现有方法进行重大改进。这项研究的结果将对从事物理化学和大气化学工作的科学家有价值。这些结果将有助于更好地理解气溶胶在环境和大气污染中所起的作用。学生和博士后研究助理将参与本研究。

In this project, jointly funded by the Experimental Physical Chemistry Program of the Chemistry Division and the Atmospheric Chemistry Program of the Division of Atmospheric Sciences of the Directorate for Geosciences, Baer will conduct research on the morphology and chemistry of individual aerosol particles. A unique aerosol time-of-flight mass spectrometer has been developed for this purpose. Individual aerosol particles will be vaporized by an IR laser, and ionized by a VUV laser to allow a quantitative determination of chemical composition, coating thickness, and reaction depth. The data obtained will be of use to researchers in physical chemistry and atmospheric chemistry.In this project a novel instrument will be developed and used for the investigation of the chemistry and morphology of individual aerosol particles. Significant improvements over existing methods are envisioned. The results of this research will be of value to scientists working in physical chemistry and atmospheric chemistry. The results will contribute to a better understanding of the role played by aerosols in the environment and atmospheric pollution. Students and post doctoral research associates will participate in this research.