The collection of ultrafine aerosol particles for analysis bytransmission electron microscopy, using a new thermophoretic precipitator

Andrew Maynard, L. M. Brown

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Very little instrumentation exists to characterize individual ultrafine aerosol particles. A thermophoretic precipitator has been developed to deposit uniform ultrafine particle samples onto transmission electron microscope grids, thus allowing the analytical techniques now available to be utilised. Details are given of the precipitator's design, and preliminary collection results using an ultrafine silver aerosol are presented. Comparison of data from thermophoretically collected samples and samples collected by diffusion indicates a positive collection ability at run particle sizes, but at lower deposition velocities than predicted.

Original languageEnglish (US)
JournalJournal of Aerosol Science
Volume22
Issue numberSUPPL. 1
DOIs
StatePublished - 1991
Externally publishedYes

Fingerprint

Aerosols
electron microscopy
Electron microscopy
Particles (particulate matter)
aerosol
deposition velocity
instrumentation
analytical method
silver
Silver
Electron microscopes
Deposits
Particle size
particle size
electron
analysis
Ultrafine
comparison
particle

ASJC Scopus subject areas

  • Atmospheric Science
  • Environmental Science(all)

Cite this

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AB - Very little instrumentation exists to characterize individual ultrafine aerosol particles. A thermophoretic precipitator has been developed to deposit uniform ultrafine particle samples onto transmission electron microscope grids, thus allowing the analytical techniques now available to be utilised. Details are given of the precipitator's design, and preliminary collection results using an ultrafine silver aerosol are presented. Comparison of data from thermophoretically collected samples and samples collected by diffusion indicates a positive collection ability at run particle sizes, but at lower deposition velocities than predicted.

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