Electrothermal atomisation atomic absorption spectrometric determination of silver, beryllium, calcium, iron, lead and tin in uranium without preliminary separation
- 1 January 1987
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Analytical Atomic Spectrometry
- Vol. 2 (5) , 459-461
- https://doi.org/10.1039/ja9870200459
Abstract
Electrothermal atomisation atomic absorption spectrometric methods have been developed for the direct determination of Ag, Be, Ca, Fe, Pb and Sn in uranyl nitrate solution. Using 5-µl sample aliquots containing 100 µg of uranium, the detection limits for the analytes vary between 0.1 and 25 p.p.m. (on a uranium mass basis). The precision of determinations at an intermediate concentration was calculated to be better than 9% RSD. Interference studies carried out include the effect of the build-up of uranium in the atomiser and the effect of concomitant and major impurities on the analyte absorbance. A measure of the high accuracy of the determinations can be inferred from the analysis of a set of NBL reference standards.Keywords
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