Investigation of uranium analysis using 140Ba/140La induced from 235U fission reaction

被引：0

作者：

Moon, Jong-Hwa ^{[1
]}

Hong, Seong-Pyo ^{[1
]}

Dasari, Kishore B. ^{[2
]}

机构：

[1] Korea Atom Energy Res Inst, Daedeok Daero 989-111, Daejeon 34057, South Korea

[2] Gyeongsang Natl Univ, Res Inst Nat Sci, Jinju Daero 501, Jinju Si 52828, Gyeongsangnam D, South Korea

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 12期

关键词：

U determination; U-235 fission products; La-140; nuclide; Instrumental neutron activation analysis; HANARO research reactor; INTERFERENCE; SAMPLES;

D O I：

10.1007/s10967-024-09769-z

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Ba-140 is a fission product of U-235 and decays to La-140. Analytical method of uranium in geological and environmental samples was investigated by using La-140 from U-235 and the correction factor of La-140. For the method validation, three kinds of NIST SRMs were chosen and irradiated at the HANARO research reactor. The first and second measurements for the detection of La-140 were performed, and the U content in SRM samples can be determined by two different La concentrations. The relative errors are within 10% of U values in the SRM samples. This method is applied for a NIST SRM 1648a-Urban Particulate Matter, which has no certified value. The measured value of U in SRM 1648a is 4.90 +/- 0.20 mg/kg.

引用

页码：6605 / 6608

页数：4

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