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Solvent-extraction method for the determination of manganese-54 in sea water

Journal Article · · Anal. Chim. Acta, v. 67, pp. 129-134
A solvent-extraction procedure for the determination of manganese-54 in seawater is described. The water (1 l) is buffered to pH 3.8, and extracted with di(2-ethylhexyl)phosphoric acid in nheptane. The manganese-54 with carrier is stripped from the organic phase, and eventually precipitated as the dioxide; the precipitate is dissolved in hydrochloric acid and counted in a scintillation counter. Chemical recovery is determined colori- metrically. Samples spiked with manganese-54 showed quantitative recovery from 1 l of seawater with a typical recovery of 70--75% of carrier. The method is applicable to seawater containing many other ions, and decontamination factors for a wide range of radionuclides are reported. The limit of detection is ca. 10/sup -8/ mu Ci ml/ sup -1/. (auth)
Research Organization:
Australian Atomic Energy Commission Research Establishment, Lucas Heights
Sponsoring Organization:
USDOE
NSA Number:
NSA-29-004841
OSTI ID:
4409855
Journal Information:
Anal. Chim. Acta, v. 67, pp. 129-134, Journal Name: Anal. Chim. Acta, v. 67, pp. 129-134; ISSN ACACA
Country of Publication:
Country unknown/Code not available
Language:
English

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