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Sabine Schmidt, J.-L. Reyss

Improvement in radiochemical and γ-counting procedures for the determination of ²³⁴Th in seawater

Procedures have been improved for the measurement of dissolved ²³⁴Th in seawater on 20-l volume samples, using a single γ counting. The shortened ²³⁴Th protocol can be conducted at sea for radiochemical purification. Subsequent low-level gamma counting is done at the laboratory for the determination of the ²²⁹Th yield tracer, ²³⁴Th, and, depending of its activity, of ²²⁸Th. It offers an easy and fast method for ²³⁴Th analyses. This new approach avoids time-consuming extraction and plating procedures used previously and reduces counting errors associated with multiple counting sessions.

Radiochimica Acta, Oldenbourg Wissenschaftsverlag

Print ISSN: 0033-8230
Volume: 88, 08/2000
Pages: 459

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