Influence of extraction process on Cs isotope ratios for Fukushima Daiichi nuclear power plant accident-contaminated soil

被引：4
|
作者：
Takahashi, Hiroaki [1 ]
Park, Ki Chul [2 ]
Nomura, Masao [2 ]
Shibahara, Hiroki [3 ]
Miura, Hanako [3 ]
Ohishi, Yukiko [3 ]
Yuki, Mami [3 ]
Tsukahara, Takehiko [2 ]
机构：
[1] Secretariat Nucl Regulat Author S NRA R, Regulatory Stand & Res Dept, Minato Ku, 1-9-9 Roppongi, Tokyo 1068450, Japan
[2] Tokyo Inst Technol, Inst Innovat Res, Meguro Ku, 2-12-1-N1-6 O Okayama, Tokyo 1528550, Japan
[3] ATOX Co Ltd, Engn Res & Dev Ctr, 1201 Takada, Kashiwa, Chiba 2770861, Japan
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2021年 / 329卷 / 01期
关键词：
Cs-135; Cs-137 isotope ratios; Fukushima Daiichi nuclear power plant accident; Soil contamination; TIMS; Triple-quadrupole ICP-MS; CS-135/CS-137 ATOMIC RATIO; ENVIRONMENTAL-SAMPLES; MASS-SPECTROMETRY; CLAY-MINERALS; CESIUM; CS-135; RADIOCESIUM; ADSORPTION; TRACE; ATTRIBUTION;
D O I：
10.1007/s10967-021-07760-6
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The influence of extraction process on Cs isotope ratios was investigated by thermal ionization mass spectrometry (TIMS) for nitric-acid (HNO3) treatments of Fukushima Daiichi nuclear power plant accident-contaminated soil samples. In contrast to the consistent TIMS results for conc. HNO3 treatments at 90-200 degrees C, dilute HNO3 treatment provided a statistically significant 3.0 parts per thousand-higher Cs-135/Cs-137 average isotope ratio than the conc. HNO3 treatment conducted at the same temperature. The higher isotope ratio is caused by a specific extraction process making detectable the deviated distribution of Cs isotopes in clay minerals or leading to matrix effects responsible for instrumental mass bias.
引用
收藏
页码：327 / 336
页数：10
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