Application of the ART-2a algorithm to laser ablation aerosol mass spectrometry of particle standards

D. J. Phares, K. P. Rhoads, A. S. Wexler, D. B. Kane, M. V. Johnston

Research output: Contribution to journalArticle

67 Scopus citations

Abstract

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 ∼0.5 while the optimum learning rate is ∼0.05. The classifications elucidate limitations in generation of test particles, their analysis by single-particle techniques, and their classification by ART-2a.

Original languageEnglish (US)
Pages (from-to)2338-2344
Number of pages7
JournalAnalytical Chemistry
Volume73
Issue number10
DOIs
StatePublished - May 15 2001

ASJC Scopus subject areas

  • Analytical Chemistry

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    Phares, D. J., Rhoads, K. P., Wexler, A. S., Kane, D. B., & Johnston, M. V. (2001). Application of the ART-2a algorithm to laser ablation aerosol mass spectrometry of particle standards. Analytical Chemistry, 73(10), 2338-2344. https://doi.org/10.1021/ac0015063