Ambient aerosol analysis using aerosol-time-of-flight mass spectrometry
We have recently developed a technique, Aerosol-Time-of-Flight Mass Spectrometry (ATOFMS), which is capable of real-time determination of the aerodynamic size and chemical composition of individual aerosol particles. In order to obtain such information, the techniques of aerodynamic particle sizing and time-of-flight mass spectrometry are combined in a single instrument. ATOFMS is being used for the direct analysis of ambient aerosols with the goal of establishing correlations between particle size and chemical composition. Currently, measurements are being made to establish potential links between the presence of particular types of particles with such factors as the time of day, weather conditions, and concentration levels of gaseous smog components such as NO{sub x} and ozone. This data will be used to help establish a better understanding of tropospheric gas-aerosol processes. This talk will discuss the operating principles of ATOFMS as well as present the results of ambient analysis studies performed in our laboratory.
- OSTI ID:
- 370013
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Real-time analysis of ambient aerosols for size and chemical composition using aerosol time-of-flight mass spectrometry (ATOFMS)
Detection response of elemental species in single particles using aerosol time-of-flight mass spectrometry