AERODYNAMIC PARTICLE SIZING VERSUS LIGHT-SCATTERING INTENSITY MEASUREMENT AS METHODS FOR REAL-TIME PARTICLE SIZING COUPLED WITH TIME-OF-FLIGHT MASS-SPECTROMETRY

Measurement of scattered light intensity and aerodynamic particle sizi ng are two methods that have recently been coupled with tine-of-flight mass spectrometry for real-time determination of aerosol particle siz e and composition. An aerosol analysis technique recently developed in our laboratory, aerosol time-of-flight mass spectrometry, offers a un ique experimental platform to evaluate both of these sizing techniques . This paper presents a comparison of results obtained with these two methods.