Measurement of sulfur isotope ratios in micrometer-sized samples by NanoSIMS

B. Winterholler*, P. Hoppe, M. O. Andreae, S. Foley

*Corresponding author for this work

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Sulfur isotope ratios of atmospheric aerosol particles can provide detailed information with regard to the origin and the transport of sulfur in the environment. The new Cameca NanoSIMS 50 ion microprobe technique permits analysis of individual aerosol particles with volumes down to 0.5 μm3 and a precision for δ34S of 3-10‰ (2σ). This technique will set new standards in the analysis of isotope ratios in atmospheric aerosol. For the first time it is possible to directly compare chemical and isotopic composition of individual aerosol particles, identify internal and external mixtures and investigate reactions of anthropogenic gases with natural aerosol such as sea salt and mineral dust.

Original languageEnglish
Pages (from-to)7128-7131
Number of pages4
JournalApplied Surface Science
Volume252
Issue number19
DOIs
Publication statusPublished - 30 Jul 2006
Externally publishedYes

Keywords

  • Aerosol particles
  • NanoSIMS
  • Sulfur isotopic composition

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