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Issue 3, 2008
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Time-resolved studies of particle effects in laser ablation inductively coupled plasma-mass spectrometry

Part 2. Investigation of MO+ ions, effect of sample morphology, transport gas, and binding agents

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Abstract

Time resolved signals in laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) are studied to determine the influence of experimental parameters on ICP-induced fractionation effects. Differences in sample composition and morphology, i.e., ablating brass, glass, or dust pellets, have a profound effect on the time resolved signal. Helium transport gas significantly decreases large positive signal spikes arising from large particles in the ICP. A binder for pellets also reduces the abundance and amplitude of spikes in the signal. MO+ ions also yield signal spikes, but these MO+ spikes generally occur at different times from their atomic ion counterparts.

Graphical abstract: Time-resolved studies of particle effects in laser ablation inductively coupled plasma-mass spectrometry Part 2. Investigation of MO+ ions, effect of sample morphology, transport gas, and binding agents

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Publication details

The article was received on 03 Jul 2007, accepted on 17 Oct 2007 and first published on 13 Nov 2007


Article type: Paper
DOI: 10.1039/B710075B
J. Anal. At. Spectrom., 2008,23, 336-341

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    Time-resolved studies of particle effects in laser ablation inductively coupled plasma-mass spectrometry

    D. C. Perdian, S. J. Bajic, D. P. Baldwin and R. S. Houk, J. Anal. At. Spectrom., 2008, 23, 336
    DOI: 10.1039/B710075B

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