Static SIMS desorption of tributyl phosphate from mineral surfaces: Effect of Fe(II)
- Idaho National Engineering Lab., Idaho Falls, ID (United States)
Static secondary ion mass spectrometry (SIMS) has been used to directly detect tri-n-butyl phosphate (TBP) on mineral surfaces. During the course of these analyses, it was noted that the SIM spectrum of TBP varied, and that the variation was dependent upon the mineral surface to which the TBP was adsorbed. The detection of TBP on mineral surfaces is of interest because the compound has been used extensively for the extraction of uranium in reactor fuel reprocessing. In some cases, reprocessing wastes have contaminated the environment, and consequently methods for the rapid and inexpensive detection of TBP are desired. SIMS is being evaluated for the detection of TBP, because new instrumentation permits the analysis of virtually any sample type with no sample preparation and no waste generation. The use of ReO{sub 4} as a primary bombarding particle enhances the sensitivity of the technique for molecular species which are surface-adsorbed. Pulsed secondary ion extraction enables the charge neutrality of the samples surface to be maintained, and also permits the simultaneous acquisition of anion and cation spectra.
- OSTI ID:
- 61939
- Report Number(s):
- CONF-9405234--
- Country of Publication:
- United States
- Language:
- English
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