ISSN:
1588-2780
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract Concentrations of99Tc were determined by inductively coupled plasma mass spectrometry (ICP-MS) on coastal seawater in the general environment in Japan. Technetium was enriched on iron hydroxide by repetitive co-precipitation method from a large volume of seawater and separated from impurities by solvent extraction and ion-exchange techniques. The concentrations of99Tc were 1.0 to 7.4 μBq1−1, which was one order of magnitude lower than the level reported on seawater from general environment by beta-ray counting. Concentrations of137Cs determined on the same seawater were 3.7 and 3.9 mBq1−1. The activity ratio of99Tc/137Cs was calculated to be 2.7×10−4. This ratio was very close to the value expected for fallout from nuclear tests.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02036003
