Development of Cs separation methods from large amounts of soil samples to determine the 135Cs/137Cs isotope ratio

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-09-19 DOI:10.1007/s10967-024-09749-3

Asako Shimada, Takehiko Tsukahara, Masao Nomura, Seiji Takeda

引用次数: 0

Abstract

Since the ¹³⁵Cs and ¹³⁷Cs concentration level of environmental soil in prefectures adjacent to Fukushima is low at about 5.5 × 10⁻¹⁵ − 6 × 10⁻¹³ g g⁻¹, a large amount of soil is required to obtain sufficient amount to measure them precisely. Two Cs separation methods which allow to treat large amounts of leached soil solution were developed: 1) A continuous butch extraction method using calix[4]arene-bis(t-octylbenzo-crown-6) and 2) A combination method of selective Cs adsorption using ammonium phosphotangstate and anion-cation exchange resins. These methods were applied to low Cs concentration samples, and good precision of 0.8–2.1% in the measurement of ¹³⁵Cs/¹³⁷Cs isotope ratio was obtained.

Abstract Image

查看原文本刊更多论文

开发从大量土壤样本中分离铯的方法，以确定 135Cs/137Cs 同位素比率

由于福岛县附近环境土壤中 135Cs 和 137Cs 的浓度水平较低，约为 5.5 × 10-15 - 6 × 10-13 g-1，因此需要大量土壤才能获得足够的量来精确测量。我们开发了两种可处理大量沥滤土壤溶液的铯分离方法：1) 使用钙[4]炔-双（t-辛基苯并冠醚-6）的连续丁基萃取法；2) 使用磷塘沽酸铵和阴阳离子交换树脂的选择性铯吸附组合法。这些方法适用于低 Cs 浓度样品，在测量 135Cs/137Cs 同位素比值方面获得了 0.8-2.1% 的良好精度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.