Determination of polonium-210 in phosphoric acid

Nakanishi, Takasi; Fukuda, Hirokazu; Hirose, Masaaki

doi:10.1007/bf02345930

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2010

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“…By this method an improvement of deposition yield is expected. Therefore, we also examined electrodeposition methods [11][12][13] in terms of the current applied to as well as duration of electrolysis. …”

Section: Introductionmentioning

confidence: 99%

Improvements on the method for determining of 210Pb and 210Po in lead

Uesugi

Noguchi

Yokoyama

et al. 2010

J Radioanal Nucl Chem

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An improved method is proposed to determine the content of 210 Pb in lead using 210 Po measured by alpha-ray spectrometry. This improved method, which is based on radiochemical separation by DDTC-toluene extraction, employs EDTA and citrate as masking reagents for the lead ions. To selectively extract polonium from an alkaline solution, the pH dependency was examined using a liquid scintillation counting method.And pH 9 was chosen as an extraction condition. Then 210 Po was electrodeposited on a stainless steel disk, and the chemical recovery was followed by 209 Po tracer. The effectiveness of the new method was validated by the agreement with the analytical results from five samples as determined by gamma-ray spectrometry.

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Section: Introductionmentioning

confidence: 99%