Application of the ART-2a algorithm to laser ablation aerosol mass spectrometry of particle standards.
Single-particle mass spectrometers are now commonly used to analyze atmospheric particles and generate tens of thousands of spectra from typical measurement campaigns. The ART-2a spectrum algorithm has been used to classify these spectra. In this work, we generate a range of particles that are models of those that are common in the atmosphere. A single-particle mass spectrometer is used to analyze these known particles, and the spectra are classified using ART-2a. The optimum vigilance parameter is approximately 0.5 while the optimum learning rate is approximately 0.05. The classifications elucidate limitations in generation of test particles, their analysis by single-particle techniques, and their classification by ART-2a.
Phares
D J
DJ
Department of Mechanical Engineering, University of Delaware, Newark 19716, USA.
Rhoads
K P
KP
Wexler
A S
AS
Kane
D B
DB
Johnston
M V
MV