6533b7dafe1ef96bd126e979

RESEARCH PRODUCT

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

Meinrat O. AndreaeStephen F. FoleyPeter HoppeB. Winterholler

subject

Microprobefood.ingredientIsotopeSea saltAnalytical chemistryGeneral Physics and Astronomychemistry.chemical_elementSurfaces and InterfacesGeneral ChemistryMineral dustCondensed Matter PhysicsSulfurSurfaces Coatings and FilmsIonAerosolMicrometrefoodchemistryEnvironmental chemistry

description

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 μm 3 and a precision for δ 34 S of 3–10‰ (2 σ ). 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.

yearjournalcountryeditionlanguage
2006-07-01Applied Surface Science
https://doi.org/10.1016/j.apsusc.2006.02.150