University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Website: @unf

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Exhaust Particulates

Classification: Environmental -> automobile -> exhaust -> particulates

Citations 1

"Flow Injection Inductively Coupled Plasma Mass Spectrometry For The Determination Of Platinum In Airborne Particulate Matter"
J. Anal. At. Spectrom. 1990 Volume 5, Issue 1 Pages 75-80
Hitoshi Mukai, Yoshinari Ambe and Masatoshi Morita

Abstract: Standard solution of Pt in 0.6 M HCl and samples of particulate airborne matter (prep. described) were introduced into a flow injection system (described) incorporating a cation-exchange column (16 cm x 8 mm) of Dowex 50W-X8 (50 to 80 mesh) which was pre-washed with 3 M HCl and stabilized with 0.6 M HCl. This system was used online for trapping major matrix elements, which cause suppression of the Pt signal at m/e = 195, and Hf (which interferes spectrally) from 0.6 M HCl medium. The eluate from the column was introduced into the ICP-MS for the determination of Pt. The calibration graph was rectilinear up to 40 µg L-1 of Pt, and the coefficient of variation (n = 5) for 2 µg L-1 of Pt was ~5%. The detection limit was ~0.1 µg L-1 of Pt in solution or 5 ng g-1 in airborne particulate matter. The method was applied to the determination of Pt in samples such as vehicle exhaust particulates and roadside dust.
Platinum Mass spectrometry Ion exchange Column Dowex Interferences Calibration Detection limit