Role of aerosol water vapour loading in inductively coupled plasma mass spectrometry
- 1 January 1987
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Analytical Atomic Spectrometry
- Vol. 2 (6) , 595-598
- https://doi.org/10.1039/ja9870200595
Abstract
The influence of aerosol water loading has been shown to be of great significance in inductively coupled plasma mass spectrometry (ICP-MS). The resultant spectra from both singly charged M+, oxide MO+ and doubly charged M2+ species have a strong dependence on the water loading in the plasma. Similarly the levels of polyatomic species, whether derived directly or indirectly from water components (O+, H+) are also significantly improved when loadings are lowered. At low water loadings, the mean ion energies are reduced to low but reasonably constant levels (ca. 4 eV) for a wide range of elements facilitating more predictable plasmas and minimising mass dependent ion focusing.Keywords
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