基于阴离子树脂和Ni树脂分离-液闪法对土壤中63Ni的分析测量研究

Abstract

Abstract: An analysis method for the determination of ⁶³Ni in soil samples using anion resin and Ni resin and liquid scintillation counter was developed. Through pretreatment processes such as grinding, leaching, and precipitation, interfering radionuclides are separated by using resin. The chemical recovery is determined by an atomic absorption spectrometer, and then the activity concentration of ⁶³Ni is measured by the liquid scintillation counter. The experimental results show that the chemical recovery of this method reaches 76.1%±3.8%, the detection limit is (26.0±1.2) Bq/kg, and the decontamination factors for common interfering radionuclides such as Fe, Co, Cs, and Zn reach 10² to 10⁵. Among them, this method innovatively optimizes the resin separation process and chemical treatment conditions. It is simple and reliable to operate, with a stable recovery rate. The method can be used for determination of ⁶³Ni in environmental soil samples arround nuclear facilities.

Key words: soil, ⁶³Ni, nickel resin, liquid scintillation counter

CLC Number:

TL75+1

YANG Hailan , BAO Li, LIU Wangdong, GUO Chen, REN Zhemin, YANG Youkun, YIN Yali, GOU Rongxia. Determination of ⁶³Ni in soil samples by liquid scintillation counting after the separation of anion resin and Ni resin[J].RADIATION PROTECTION, 2025, 45(5): 489-495.

References

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Determination of ⁶³Ni in soil samples by liquid scintillation counting after the separation of anion resin and Ni resin

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Determination of 63Ni in soil samples by liquid scintillation counting after the separation of anion resin and Ni resin

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Determination of ⁶³Ni in soil samples by liquid scintillation counting after the separation of anion resin and Ni resin