Chemical removal of sulphur from AgCl and AgBr for 36Cl measurements at ANSTO

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dc.contributor.authorSimon, KJen_AU
dc.contributor.authorWilcken, KMen_AU
dc.contributor.authorAmatya Joshi, Aen_AU
dc.date.accessioned2022-07-05T05:07:53Zen_AU
dc.date.available2022-07-05T05:07:53Zen_AU
dc.date.issued2021-11-17en_AU
dc.date.statistics2022-07-01en_AU
dc.description.abstractMeasurements of 36Cl on the 6MV tandem accelerator (SIRIUS) at ANSTO began in 2016, and since then over 1000 groundwater and rock samples have been processed and measured. The challenge with the sample preparation for 36Cl is to keep the 36S rates consistently low to minimise the impact to the 36Cl ion detection. This is generally achieved by precipitating sulphate as BaSO4 before a final precipitation as AgCl. We tested a range of methods for their efficacy, ease of use and consistency in keeping the 36S rates low. For measurement, the AgCl is backed in a bed of AgBr, but the sulphur rate of commercially available AgBr can vary significantly between batches. Preparing AgBr in house can produce very low sulphur rates [1,2]. Alternatively, we have achieved similarly low 36S rates by treating commercially available AgBr in 1M HNO3 for >24 hours.en_AU
dc.identifier.citationSimon, K., Wilcken, K., & Amatya Joshi, A. (2021). Chemical removal of sulphur from AgCl and AgBr for 36Cl measurements at ANSTO. Paper presented to the 15th International Conference on Accelerator Mass Spectrometry, ANSTO Sydney, Australia, November 15th – 19th, 2021, (pp. 194). Retrieved from: https://ams15sydney.com/wp-content/uploads/2021/11/AMS-15-Full-Program-and-Abstract-Book-R-1.pdfen_AU
dc.identifier.conferenceenddate19 November 2021en_AU
dc.identifier.conferencename15th International Conference on Accelerator Mass Spectrometryen_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate15 November 2021en_AU
dc.identifier.pagination194en_AU
dc.identifier.urihttps://ams15sydney.com/wp-content/uploads/2021/11/AMS-15-Full-Program-and-Abstract-Book-R-1.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13339en_AU
dc.language.isoenen_AU
dc.publisherAustralian Nuclear Science and Technology Organisationen_AU
dc.subjectChemicalsen_AU
dc.subjectSulfatesen_AU
dc.subjectChlorine 36en_AU
dc.subjectSilver chloridesen_AU
dc.subjectSilver bromidesen_AU
dc.subjectANSTOen_AU
dc.subjectGround wateren_AU
dc.subjectRocksen_AU
dc.subjectAcceleratorsen_AU
dc.titleChemical removal of sulphur from AgCl and AgBr for 36Cl measurements at ANSTOen_AU
dc.typeConference Abstracten_AU
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