In this paper, Aerosol time-of-flight mass spectrometer optical particle size measurement system
optimization and influencing factors are studied. Optimized the distance between nozzle and the
skimmer, using a shorter wavelength light source measurement, Aerosol particle size measurement
from the previous limit of 260 nm to 120 nm. Study found that the particles scattered light intensity is
connected with light intensity and wavelength of the light source. particle size measurements using
shorter laser wavelengths or greater energy, which can measure smaller size diameter within certain
range. combining particle beam focusing aerodynamic lens system device, the particle size of air the
time-resolved measurement of 256 / min, Measurement of time-resolved mass spectrometry to 170 /
min, MS hit rate of 64.5%.
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