Advances in Handling Small Radiocarbon Samples at the Laboratoire de Mesure du Carbone 14 in Saclay, France
Open accessAbstract
The Artemis accelerator mass spectrometry (AMS) facility, installed in 2003 in Saclay, France, is devoted to radiocarbon measurements. Samples are submitted by scientists in the fields of Quaternary geology, environmental sciences, and archaeology. The entire preparation process, originally optimized for samples with about 1 mg of carbon, has been tested in recent years for samples with a lower carbon content. In particular, we prepared and measured carbonate and organic background and reference samples ranging in mass from 0.01 to 1 mg C. These tests helped define our protocol's practical limits and determine necessary improvements. Furthermore, our experiments demonstrated that satisfactory graphitization yields (80% and higher) and low background values can be obtained with samples down to 0.2 mg of carbon. For handling smaller samples, we developed a specific process. We tested smaller reactors (5 mL in volume) and adapted the reduction parameters (H 2 pressure and temperature) accordingly. We also tested the effect of a chemical water trap on graphitization yields and 14 C results. This paper presents in detail the aforementioned developments and reports the 14 C results obtained for background and standard small samples prepared with the modified reactors.
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Quiles, A., Valladas, H., Bocherens, H., Delqué-Količ, E., Kaltnecker, E., van der Plicht, J., Delannoy, J.-J., Feruglio, V., Fritz, C., Monney, J., et al. (2016) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1523158113 · Cited by 152 · see citing works
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- Authors
- Delqué-Količ, E., Caffy, I., Comby-Zerbino, C., Dumoulin, J. P., Hain, S., Massault, M., Moreau, C., Quiles, A., Setti, V, Souprayen, C., Tannau, J. F., Thellier, B., & Vincent, J.
- Affiliations
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Université Paris-Sud (FR)
- Centre National de la Recherche Scientifique (FR)
- Corresponding author
- Delqué-Količ, E
- Venue
- Radiocarbon
- Publisher
- Cambridge University Press (CUP)
- Published
- 2013
- Volume
- 55
- Issue
- 2
- Pages
- 648-656
- ISSN
- 0033-8222 (ISSN-L)
- 1945-5755
- OpenAlex
- W2111962948
- Cited by
- 17
- References
- 12
- Citations by year
- 2023: 1 · 2021: 2 · 2020: 5 · 2019: 2 · 2017: 2 · 2016: 3 · 2015: 1 · 2013: 1
- FWCI
- 1.13
- Type
- journal article
- Language
- en
- Open access
- green
- hal.science
- Licence
- Locations
- Radiocarbon (publishedVersion)
- HAL (submittedVersion, other-oa)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Archaeology and ancient environmental studies
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
- Physical Sciences › Physics and Astronomy › Radiation › Radioactive Decay and Measurement Techniques
- Keywords
- radiocarbon measurement, accelerator mass spectrometry, graphitization, hydrogen reduction, reference samples, carbonate sample, organic samples, sample preparation protocol
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