Characterization of organic species on solid surfaces using sup 252 Cf plasma desorption mass spectrometry
{sup 252}Cf plasma desorption mass spectrometry (PDMS) has been applied to the characterization of compounds which are difficult to analyze by conventional mass spectrometry. Ion formation and fragmentation patterns of a series of organic dyes were studied, and the results were compared with those from laser desorption mass spectrometry (LMMS). For single component samples, spectra from the two techniques were qualitatively similar. Many different modes of ionization were represented. For multicomponent dye samples, PDMS proved to be more useful than LMMS due to the mixture inhomogeneity in the microvolume sampled by LMMS. The applicability of PDMS to the characterization of insulating inorganic materials was demonstrated in the analysis of Chrysotile asbestos and silica gel samples. Analysis of the samples showed ionic clustering of the major constituents.
- Research Organization:
- Texas A and M Univ., College Station, TX (USA)
- OSTI ID:
- 6725910
- Country of Publication:
- United States
- Language:
- English
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