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- Title
A rapid method for <sup>137</sup>Cs preconcentration from seawater by using polyaluminum chloride as coagulant.
- Authors
Chen, Wan-Ling; Pan, Chia-Yin; Huang, Hsin-Hsiung; Tsai, Wen-Hsien
- Abstract
A rapid method was developed herein for preconcentrating and determining 137Cs in seawater. The coagulant polyaluminum chloride was used to accelerate the ammonium phosphomolybdate sedimentation for preconcentrating 137Cs from large volumes of seawater, followed by direct measurement with gamma-ray spectrometry. Compared with the conventional method, this new approach can reduce the preconcentration time from 4 to 5 days to within a single day. The proposed method was applied to the survey of samples collected surrounding Taiwan since 2018. The mean range of 137Cs level was about 1–2 Bq m−3, far below the Taiwan regulatory limit of 2 Bq L−1.
- Subjects
TAIWAN; POLYALUMINUM chloride; SEAWATER; COAGULANTS; CESIUM; GAMMA ray spectrometry
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2021, Vol 329, Issue 3, p1345
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-021-07905-7