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

被引：6

作者：

Uesugi, Masaki ^{[1
]}

Noguchi, Masayasu ^{[2
]}

Yokoyama, Akihiko ^{[3
]}

Nakanishi, Takashi ^{[3
]}

机构：

[1] Kanazawa Univ, Grad Sch Nat Sci & Technol, Div Mat Sci, Kanazawa, Ishikawa 9201192, Japan

[2] Japan Chem Anal Ctr, Chiba, Japan

[3] Kanazawa Univ, Inst Sci & Engn, Fac Chem, Kanazawa, Ishikawa 9201192, Japan

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2010年 / 283卷 / 03期

关键词：

Pb-210; Po-210; Po-209; DDTC extraction; EDTA masking; Electrodeposition; Alpha-spectrometry; Eco-friendly; RAY SPECTROMETRY; EXTRACTION;

D O I：

10.1007/s10967-009-0440-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An improved method is proposed to determine the content of Pb-210 in lead using Po-210 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 Po-210 was electrodeposited on a stainless steel disk, and the chemical recovery was followed by Po-209 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.

引用

页码：577 / 584

页数：8

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