Influence of metal ions on the acquisition and quality of 252Cf plasma‐desorption mass spectra
- 1 June 1989
- journal article
- research article
- Published by Wiley in Rapid Communications in Mass Spectrometry
- Vol. 3 (6) , 171-174
- https://doi.org/10.1002/rcm.1290030602
Abstract
The presence of a few mol per cent of Ca2+ ions considerably modified the 252Cf plasma‐desorption mass spectrum of a phosphorylated glycolipid. In the negative‐ion mode, increasing amounts of Ca2+ caused gradual disappearance of the spectrum; it was quenched at the molar ratio 3 Ca2+/4 glycolipid. Clusters as big as 5500 were observed at certain ratios of Ca2+/glycolipid. Similar, but less pronounced effects were seen in the positive‐ion mode.Keywords
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