Determination of rare-earth elements in geological and environmental samples using an automated batch preconcentration/matrix elimination system
Conference
·
OSTI ID:191713
- CETAC Technologies, Omaha, NE (United States)
- Lamont-Doherty Geological Observatory, Palisades, NY (United States)
Determination of the rare earth elements is important in the study of sedimentary processes. Geological and environmental samples often contain very low levels of these elements, and detection by plasma spectroscopy (ICP-AES, ICP-MS) is difficult unless a preconcentration and/or matrix elimination procedure is performed prior to analysis.; An automated batch preconcentration/matrix elimination system offers rapid, off-line sample preparation for a variety of sample types. A chelating form of a solid suspended reagent is added to a pH-adjusted sample. The suspended reagent with any bound elements are trapped in a hollow fiber membrane filter while unbound matrix components are washed to waste. The reagent with bound analytes are then released in a small volume. The system works in concert with an autosampler for unattended operation. Application to a variety of geological and environmental samples will be described.
- OSTI ID:
- 191713
- Report Number(s):
- CONF-941098--
- Country of Publication:
- United States
- Language:
- English
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