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Eurasian Journal of Analytical Chemistry
Volume 12, Issue 4 (July 2017), pp. 405-416

DOI: 10.12973/ejac.2017.00178a

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Research Article

Published online on Jan 04, 2017

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Determination of 238PU and 239+240PU in Marine Sediment Using Alpha Spectrometry

Noor Fadzilah Yusof, Jalal Sharib, & Nurrul Assyikeen Md. Jaffary

Abstract

A radiochemical separation method to determine plutonium (Pu) radioisotopes in environmental samples has been established in Radiochemistry and Environmental Laboratory in Malaysia. The analysis involving sample digestion with aqua regia solution and followed by radiochemical separation using ion exchange method. The source for alpha spectrometry was prepared by electrodeposition. The chemical recoveries were determined using 242Pu tracer. The method was tested on reference materials and on real sediments from Malaysia marine environment. The validity of the method was checked for coherence using the t-test, relative error and relative standard deviation. All the results obtained were in good agreement with the reference values which indicated that the recommended procedures was successfully applied for the determination of plutonium activities in Radiochemistry and Environmental Laboratory in Malaysia.

Keywords: plutonium radioisotopes, radiochemical separation, alpha spectrometry, sediment


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