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Fractionation of aerosol particles produced by laser ablation in ICP-MS analysis

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Abstract

The element composition of aerosol particles produced by laser ablation (laser wavelength: 266 nm; laser pulse length: 5 ns) of brass and steel in Ar and He and deposited on different segments of the transport tube to an Ar ICP have been measured by ICP-MS. Depending on the experimental parameters and the matrix, the element composition of the aerosol particles deposited on different parts of the tube deviated from the stoichiometric element ratios of the bulk and varied along the tube.

© 2002 Optical Society of America

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