Improving the recovery of polonium analysis in sediment samples by alpha particle spectrometry

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dc.contributor.authorMaizma, Sen_AU
dc.contributor.authorZawadzki, Aen_AU
dc.date.accessioned2023-01-27T00:30:13Zen_AU
dc.date.available2023-01-27T00:30:13Zen_AU
dc.date.issued2022-11-28en_AU
dc.date.statistics2023-01-20en_AU
dc.description.abstractAt the ANSTO low level radioanalytical facility, sediment samples for lead-210 dating are analysed for polonium-210 and radium-226 activities by alpha particle spectrometry. To improve the efficiency of sample digestion, a block digester was acquired for digesting sediment and other environmental samples. A new hot plate stirrer was also acquired and used in the isolation of polonium via autodeposition onto silvers disks. The change in the digestion and auto-deposition steps resulted in improved polonium recoveries from 50-60% to 80-90%. The ability to control the acid digestion temperature at 90°C and between 70°C to 80°C during autodeposition improved the polonium recoveries.en_AU
dc.identifier.citationMaizma, S., Zawadzki, A. (2022). Improving the recovery of polonium analysis in sediment samples by alpha particle spectrometry. Poster presented to SPERA 2022 - Connecting people, developing solutions for a changing environment, Christchurch, New Zealand, 28-30 November 2022. (pp. 51). Retrieved from: https://au-admin.eventscloud.com/file_uploads/baa6bb17538b457fbd436f1552075bea_SPERA2022e-handbook.pdfen_AU
dc.identifier.conferenceenddate30 November 2022en_AU
dc.identifier.conferencenameSPERA 2022 - Connecting people, developing solutions for a changing environmenten_AU
dc.identifier.conferenceplaceChristchurch, New Zealanden_AU
dc.identifier.conferencestartdate28 November 2022en_AU
dc.identifier.pagination51en_AU
dc.identifier.urihttps://au-admin.eventscloud.com/file_uploads/baa6bb17538b457fbd436f1552075bea_SPERA2022e-handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14518en_AU
dc.language.isoenen_AU
dc.publisherSouth Pacific Environmental Radioactivity Associationen_AU
dc.subjectPoloniumen_AU
dc.subjectANSTOen_AU
dc.subjectLead 210en_AU
dc.subjectRadium 226en_AU
dc.subjectAlpha spectroscopyen_AU
dc.subjectSedimentsen_AU
dc.subjectTemperature range 0000-0013 Ken_AU
dc.titleImproving the recovery of polonium analysis in sediment samples by alpha particle spectrometryen_AU
dc.typeConference Posteren_AU
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