Abstract
The main factor restricting lead isotope analysis of metals from museum collections is the requirement for physical material. Hence, there are major incentives for developing minimally invasive methods for lead isotope analysis that are accurate and precise enough to reveal historical information about artefacts and their origin. Portable laser ablation (pLA), collecting microscopic samples on Teflon filters, has four key benefits. It produces no visual impact to the artefacts, does not require transport of artefacts to laboratory facilities, there are no artefact size restrictions, and samples are processed under clean laboratory conditions allowing Pb purification prior to measurement by solution MC-ICPMS. To validate the efficacy of the pLA technique on silver, nine matrixed-matched commercial, in-house and archaeological reference materials were sampled and analysed multiple times (9-10). The pLA mean analyses (±2SD) were all consistent with inter-laboratory bulk analyses. The digestion of sample filters produces precisions that are consistently more than five-times better than in situ nsLA-MC-ICPMS and are the same order of magnitude expected for bulk samples processed in different laboratories. This journal is
Original language | English |
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Pages (from-to) | 148-156 |
Number of pages | 9 |
Journal | Journal of Analytical Atomic Spectrometry |
Volume | 37 |
Issue number | 1 |
Early online date | 1 Dec 2021 |
DOIs | |
Publication status | Published - 1 Jan 2022 |
Bibliographical note
Funding Information:The research was funded by the European Research Council under the ERC Starting Grant awarded to Jane Kershaw (Action number 802349) and the European Union's Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement no. 319209 (ERC-Synergy NEXUS 1492). This project has been supported by the Dutch Ministry of Education, Culture and Science within the context of the Dutch node of E-RIHS (European Infrastructure for Heritage Science).
Publisher Copyright:
© The Royal Society of Chemistry.
Funding
The research was funded by the European Research Council under the ERC Starting Grant awarded to Jane Kershaw (Action number 802349) and the European Union's Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement no. 319209 (ERC-Synergy NEXUS 1492). This project has been supported by the Dutch Ministry of Education, Culture and Science within the context of the Dutch node of E-RIHS (European Infrastructure for Heritage Science).
Funders | Funder number |
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Horizon 2020 Framework Programme | 319209, 802349 |
Seventh Framework Programme | |
European Research Council | |
Ministerie van Onderwijs, Cultuur en Wetenschap | |
Seventh Framework Programme |