Evaluation of chelation preconcentration for the determination of actinide elements by flow injection ICP-MS
Conference
·
OSTI ID:338627
- Univ. of Plymouth (United Kingdom). Dept. of Environmental Sciences
- LGC, Teddington (United Kingdom)
A chelation column preconcentration method has been developed for the determination of uranium and thorium in waters by ICP-MS. Detection limits of 24 pg and 60 pg respectively were obtained, but these were blank limited. Uranium and Thorium were determined in certified reference materials. Results for uranium were 121 {+-} 21 and 15 {+-} 3 ng/g in NIST 1566a and NIST 1575 compared with certified values of 132 {+-} 12 and 20 {+-} 4 ng/g respectively. Results for thorium were 29 {+-} 8 and 28 {+-} 5 ng/g in NIST 1566a and NIST 1575 compared with indicative and certified values of 40 and 37 {+-} 3 ng/g respectively. The on-line separation of actinide radionuclides was achieved by selective elution of U, Th, Pu, Np, and Am.
- OSTI ID:
- 338627
- Report Number(s):
- CONF-980310--
- Country of Publication:
- United States
- Language:
- English
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