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Issue 2, 2008
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Warning indicators for the presence of plasma-related matrix effects in inductively coupled plasma-atomic emission spectrometry

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Abstract

Several readily measured parameters were evaluated for their ability to flag the presence of plasma-related matrix effects in inductively coupled plasma-atomic emission spectrometry. Of six plasma-species or analyte-emission-based candidates, two showed positive responses to plasma-related matrix effects. These two, the emission intensity from argon neutral-atomic lines and the spatially resolved vertical pattern of analyte emission, change considerably when matrix effects are present. In addition, the coupling of radiofrequency energy to a probe coil placed inside the ICP torch box correlated strongly with matrix effects. All three parameters show promise as alternatives to commonly used ion/atom emission intensity ratios for indicating the presence of plasma-related matrix effects.

Graphical abstract: Warning indicators for the presence of plasma-related matrix effects in inductively coupled plasma-atomic emission spectrometry

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Article information


Submitted
09 May 2007
Accepted
08 Oct 2007
First published
25 Oct 2007

J. Anal. At. Spectrom., 2008,23, 181-192
Article type
Paper

Warning indicators for the presence of plasma-related matrix effects in inductively coupled plasma-atomic emission spectrometry

G. C.-Y. Chan and G. M. Hieftje, J. Anal. At. Spectrom., 2008, 23, 181
DOI: 10.1039/B706837A

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