Measurement of mass distribution of chemical species in aerosol particlesAerosols may be generated through the nebulizing of solutions and the evaporation of their solvent, leaving the dry solute particles. Attention is presently given to a method for the direct determination of the masses of chemical species in individual aerosol particles on a continuous, real-time basis, using mass spectrometry. After the aerosol particles are introduced into the ion source of a quadrupole mass spectrometer, the particles impinge on a hot rhenium filament in the mass spectrometer's ion source. The resulting vapor plume is ionized by electron bombardment, and a pulse of ions is generated by each particle. The intensities of different masses in the ion pulses can then be measured by the mass spectrometer.
Document ID
19850045872
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Sinha, M. P. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Friedlander, S. K. (California, University Los Angeles, CA, United States)