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Rapid 90Sr quantification method based on the Bateman equation for routine laboratory work Cover

Rapid 90Sr quantification method based on the Bateman equation for routine laboratory work

Nukleonika
Volume 67 (2022): Issue 4 (December 2022)
By: ,   and    
Open Access
|Dec 2022
Figures & tables

Figures & Tables

Fig. 1

90Sr and 90Y decay scheme [4].

Fig. 2

Flow chart of the 90Sr determination procedure.

Table 1

Statistical evaluation of the 90Sr recovery in immediate and delayed measurements

Fortification level (Bq·kg−1)ImmediateDelayed
Mean (%)Median (%)SD (%)nMean (%)Median (%)SD (%)n
5858310128483428
5082822128080331
Total83827248281459

[i] SD, standard deviation.

Table 2

Validation characteristics of the applied method

CharacteristicsResult
Linearity100%
MDA0.017 Bq·kg−1
Recovery of 90Sr82%
Relative bias−18%
Repeatability (CV)a8.5%
Reproducibility (CV)a9%
Combined standard uncertainty (k = 2)b17%

a CV, coefficient of variation.

b k, coverage factor.

MDA, minimal detectable activity.

Table 3

Results from the Procorad 2021 proficiency test

SampleReference value (Bq·L−1)Bateman equation-based procedure (Bq·L−1)
21SRB3.11 ± 0.173.28 ± 0.56
21SRC6.06 ± 0.346.06 ± 1.03
DOI: https://doi.org/10.2478/nuka-2022-0006 | Journal eISSN: 1508-5791 (formerly 0029-5922) | Journal ISSN: 0029-5922
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Language: English
Page range: 67 - 72
Submitted on: Jan 25, 2022
Accepted on: Aug 17, 2022
Published on: Dec 16, 2022
Published by: Institute of Nuclear Chemistry and Technology
In partnership with: Paradigm Publishing Services
Keywords:
Bateman equation,
Liquid scintillation,
Strontium-90,
Yttrium-90
Related subjects:
Chemistry,
Nuclear chemistry

© 2022 Karol Wiatr, Barbara Rubel, Małgorzata Kardaś, published by Institute of Nuclear Chemistry and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 67 (2022): Issue 4 (December 2022)
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