Stuttgart 2012 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 1: Resonance Ionization MS, ICPMS and others I

MS 1.1: Hauptvortrag

Montag, 12. März 2012, 10:30–11:00, V57.06

Analysis of engineered and laser generated aerosols by Laser Ablation Inductively Coupled Plasma Mass Spectrometry — •Detlef Guenther, Joachim Koch, Luca Flamigni, and Sabrina Gschwind — ETH Zurich, Wolfang Pauli Strasse 10, CH-8093 Zurich

The most recent trend in LA-ICP-MS is focused on quantitative, high spatial resolution elemental mapping, which is required to reconstruct the trace element distribution in tissues, in stalagmites or in alloys and steel samples and many others. Therefore, low dispersion and sample-geometry independent ablation cells have been developed, which allow monitoring minimum changes in trace element concentrations. Some most recent ablation cell geometries will be discussed and their features on selected applications will be shown. A recently introduced atmospheric sampling system, allowing the analysis of samples without an airtight ablation cell will be explained and some promising applications will be discussed in detail [1]. Furthermore, the analysis of individual nanoparticles becomes more an more important. A well defined sample introduction system for quantitaitve analysis of nanoparticles will be introduced and preliminary figures of merit for some selected elements will be discussed.

[1]*Kovacs, R., Nishiguchi, K., Utani, K., Günther, D., Development of Direct Atmospheric Sampling for Laser Ablation - Inductively Coupled Plasma - Mass Spectrometry. J. Anal. At. Spectrom., 2010, 24, 142-147