DETERMINATION OF ULTRA-TRACE LEVELS OF GOLD IN SIZE-SEGREGATED ATMOSPHERIC PARTICULATE SAMPLES BY LASER-INDUCED FLUORESCENCE - TOWARDS AN AEROSOL TRACER

Authors
BEISSLER H PETRUCCI GA BACHMANN K PANNE U CAVALLI P OMENETTO N
Citation
H. Beissler et al., DETERMINATION OF ULTRA-TRACE LEVELS OF GOLD IN SIZE-SEGREGATED ATMOSPHERIC PARTICULATE SAMPLES BY LASER-INDUCED FLUORESCENCE - TOWARDS AN AEROSOL TRACER, Fresenius' journal of analytical chemistry, 355(3-4), 1996, pp. 345-347
Citations number
8
Categorie Soggetti
Chemistry Analytical
Journal title
Fresenius' journal of analytical chemistry → ACNP
ISSN journal
09370633
Volume
355
Issue
3-4
Year of publication
1996
Pages
345 - 347
Database
ISI
SICI code
0937-0633(1996)355:3-4<345:DOULOG>2.0.ZU;2-3
Abstract
A method is described for measuring the gold content of integral and s ize-segregated samples of atmospheric particulate matter. After acid d igestion and a liquid/ liquid extraction, the sample are analysed by T wo-Colour Laser Induced Fluorescence in a graphite furnace. An absolut e instrumental detection limit of 1 fg is achieved. Assuming a sampled volume of 1 m(3), this corresponds to an atmospheric concentration of 50 fg m(-3). Due to blank limited noise, the above limits increase to 20 fg and 1 pg m(-3), respectively. Results of the analysis of filter samples as well as of size-segregated impactor samples are presented.