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Published: 2020-03-15
Abstract Views: 125
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DOI: https://doi.org/10.53747/jnst.v10i1.30
Issue
Vol. 10 No. 1 (2020)
Section
Articles
How to Cite
Duong Duc, T., Vuong Thu, B., Bui Dac, D., Duong Van, T., Doan Thuy, H., Le Dinh, C., Nguyen Van, K., Nguyen Thi Thu, H., Cao Duc, V., Nguyen Huyen, T., Nguyen Thi, O., & Le Thi, H. (2020). Determination of recovery efficiency of ¹³⁷Cs in seawaterusing co-precipitation method. Nuclear Science and Technology, 10(1), 40-46. https://doi.org/10.53747/jnst.v10i1.30

Determination of recovery efficiency of ¹³⁷Cs in seawaterusing co-precipitation method

Duong Duc Thang1, Vuong Thu Bac1, Bui Dac Dung1, Duong Van Thang1, Doan Thuy Hau1, Le Dinh Cuong1, Nguyen Van Khanh1, Nguyen Thi Thu Ha1, Cao Duc Viet1, Nguyen Huyen Trang1, Nguyen Thi Oanh1, Le Thi Hoa1
1 Institute for Nuclear Science and Technology, 179 Hoang Quoc Viet – Cau Giay – Hanoi

Main Article Content

Abstract

Recovery efficiency of 137Cs in seawater samples with different volumes of 40, 50, 60, 80 and 100 liters using co-precipitation method by ferrocyanide compounds has been determined. 134Cs nuclide was used as a tracer to determine recovery efficiency. The results showed that the recovery efficiency of 134Cs ranged from 92.62% to 99.26% with mean value of (95.22 ± 2.61)% for different sample volumes. Average recovery efficiency for samples with a volume of 50 liters was (95.70 ± 2.50)% and uncertainty when determining 137Cs in seawater samples were still less than 20%. Therefore, reducing the volume of sample to 50 liters still ensures reliability when determining 137Cs in seawater samples by co-precipitation method, thereby reducing the chemical and time when analyze a large number of samples.

Article Details

Keywords

Recovery efficiency of 137Cs, co-precipitation method, seawater, HPGe

References

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