Abstract
Inductively coupled plasma mass spectrometry (ICP-MS) was used in the determination of 238uranium in seawater after concentration by a simplified co-precipitation with iron hydroxide. Ocean water and reference seawater were used in the study. The co-precipitation method required a smaller sample volume (10 fold less), and less column separation to recover the uranium from the seawater matrix, compared to the original iron hydroxide method. The direct seawater dilution technique requires only a small seawater volume (0.5 mL) and offers a rapid, reliable method for uranium analysis in seawater compared to traditional methods. Comparison of the results for simple co-precipitation, direct dilution of seawater, and theoretical uranium values based on salinity concentrations, yielded negligible differences. Data from this work show that the certified value for NASS-4 is low.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 29 February 2000 / Revised: 31 May 2000 / Accepted: 6 June 2000
Rights and permissions
About this article
Cite this article
Chou, C., Moffatt, J. A simple co-precipitation inductively coupled plasma mass spectrometric method for the determination of uranium in seawater. Fresenius J Anal Chem 368, 59–61 (2000). https://doi.org/10.1007/s002160000518
Issue Date:
DOI: https://doi.org/10.1007/s002160000518