Detection and analysis of aerosol particles by laser-induced breakdown spectroscopy

D. W. Hahn, M. M. Lunden

Research output: Contribution to journalArticlepeer-review

190 Scopus citations

Abstract

Laser-induced breakdown spectroscopy (LIBS) was evaluated as a means for quantitative analysis of the size, mass, and composition of individual micron-to submicron-sized aerosol particles over a range of well-characterized experimental conditions. Conditional data analysis was used to identify LIBS spectra that correspond to discrete aerosol particles under low aerosol panicle loadings. The size distributions of monodisperse particle source flows were measured using the LIBS technique for calcium- and magnesium-based aerosols The resulting size distributions were in good agreement with independently measured size distribution data. A lower size detection limit of 175 nm was determined for the calcium- and magnesium-based particles, which corresponds to a detectable mass of approximately 3 femtograms. In addition, the accuracy of the LIBS technique for the interference-free analysis of different particle types was verified using a binary aerosol system of calcium-based and chromium particles.

Original languageEnglish (US)
Pages (from-to)30-48
Number of pages19
JournalAerosol Science and Technology
Volume33
Issue number1-2
DOIs
StatePublished - 2000
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Chemistry
  • Materials Science(all)
  • Pollution

Fingerprint

Dive into the research topics of 'Detection and analysis of aerosol particles by laser-induced breakdown spectroscopy'. Together they form a unique fingerprint.

Cite this