Rapid measurement of cesium-137 (137Cs) in seawater using an ionexchange resin (AMP-PAN resin, KNiFC-PAN resin)
DC Field | Value | Language |
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dc.contributor.author | 이재은 | - |
dc.contributor.author | Lee, Hyun Mi | - |
dc.contributor.author | Kim, Suk Hyun | - |
dc.contributor.author | Seo, Junhyeong | - |
dc.contributor.author | Kim, Intae | - |
dc.date.accessioned | 2023-11-01T02:30:37Z | - |
dc.date.available | 2023-11-01T02:30:37Z | - |
dc.date.created | 2023-09-26 | - |
dc.date.issued | 2023-09-19 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/44710 | - |
dc.description.abstract | In this study, we attempted to optimize a rapid preconcentration method by cesium- 137 (137Cs) in seawater (100L) based on a commercial ion-exchange resins (AMP- PAN resin (Ammonium MolybdoPhosphate- polyacrylonitrile) and KNiFC-PAN resin (Potassium-Nickel Hexacyanoferrate (II)- polyacrylonitrile)). The concentrated 137Cs sample were measured using the High Purity Germanium (HPGe) Gamma-ray Spectroscopy System (Ortec Inc., USA) with relative detection efficiency of 100% (energy calibration error within ±1% range and within ±5% range). In this study, 137Cs preconcentration was conducted under various conditions. i) Time (1hour, 3hours, 4hours), ii) Amount of resin (5g, 19g, 25g) and iii) Stirring type (stir, cross-stir, air bubble). First, the sample was reacted with resin for at least 3 hours, the best recovery rate was 74.6 ± 1.6% for AMP-PAN resin and 94.5 ± 2.6% for KNiFC-PAN resin. Therefore, all preconcentration experiments were performed for 3 hours. Second, the amount of ionexchange resin (5g, 19g, 25g), when 25g used, AMP-PAN resin was 81.6 ± 2.4% and KNiFC- PAN resin was 93.8 ± 2.1%, which was 1- 4 times higher than that of 5 g and 19 g. Third, in the case of stirring type, AMP-PAN resin was 74.60 ± 1.6% and KNiFC-PAN resin was 93.8 ± 2.1% when cross-stirring, the recovery was more than twice as higher than other stirring-types. Regardless of the reaction experiment condition, when using KNiFC-PAN resin, it was consistently higher than (about 1.2 times) AMP-PAN resin. In comparison with AMP co-precipitation; it takes about >7 days after samples were moved to laboratory from the sea; our method 137Cs was able to reduce the to 6 hours for per-treatment and 8 hours for detection. Our results suggest that this optimized rapid 137Cs analysis in seawater can be used in the event of a radioactive accident requiring urgent monitoring in the ocean. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | University of Sevilla | - |
dc.title | Rapid measurement of cesium-137 (137Cs) in seawater using an ionexchange resin (AMP-PAN resin, KNiFC-PAN resin) | - |
dc.type | Conference | - |
dc.citation.conferenceDate | 2023-09-17 | - |
dc.citation.conferencePlace | SP | - |
dc.citation.conferencePlace | Seville | - |
dc.citation.endPage | 198 | - |
dc.citation.startPage | 198 | - |
dc.citation.title | ENVIRA 2023 | - |
dc.contributor.alternativeName | 이재은 | - |
dc.contributor.alternativeName | 이현미 | - |
dc.contributor.alternativeName | 김석현 | - |
dc.contributor.alternativeName | 서준형 | - |
dc.contributor.alternativeName | 김인태 | - |
dc.identifier.bibliographicCitation | ENVIRA 2023, pp.198 | - |
dc.description.journalClass | 1 | - |