Heated sample introduction system for the analysis of slurries by inductively coupled plasma atomic emission spectrometry
- 1 January 1991
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Analytical Atomic Spectrometry
- Vol. 6 (1) , 41-47
- https://doi.org/10.1039/ja9910600041
Abstract
A slurry sample introduction system with a heated spray chamber followed by a condenser has been evaluated. Signal intensities (calibration curve slopes) increased for liquid standards by a factor of 11 while for solid (slurry) samples, intensities increased by a factor of approximately 3. Despite these intensity increases, detection limit improvements were marginal due to a comparable increase in noise. Experimentation demonstrated that it was necessary to use a continuous tubular injector tube to reduce fluctuations in the plasma. Injector-gas composition appeared to have a major effect on the particle decomposition capability of the plasma.Keywords
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