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Development of a Semi-Automated System for Routine Preparation of Carbonate Samples

  • N Tisnérat-Laborde (a1), J J Poupeau (a1), J F Tannau (a1) and M Paterne (a1)

Abstract

We constructed a semi-automated system to transform carbonate samples to CO2, as a means to increase sample-processing capacity. The physico-chemical process includes hydrolysis of carbonate, quantification of the mass of carbon and CO2 collection in a glass ampoule. The system is computer-controlled and monitored, and all the data are stored. A single run of five consecutive samples requires about 3.5 hours. Measurements of 14C concentrations were made on samples of IAEA C-1 Carrara marble to test the reliability of this semi-automated system. These measurements have allowed the determination of the total system background and the memory effect of our system.

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Copyright

Corresponding author

Corresponding author. Email: tisnerat@lsce.cnrs-gif.fr.

References

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Arnold, M, Bard, E, Maurice, P, Valladas, H, Duplessy, JC. 1989. 14C dating with the Gif-sur-Yvette Tandetron accelerator: status report and study of isotopic fractionation in the sputter ion source. Radiocarbon 31(3): 284–91.
Brown, TA, Southon, JR. 1997. Corrections for contamination background in AMS 14C measurements. Nuclear Instruments and Methods in Physics Research B123:208–13.
Kirner, DL, Taylor, RE, Southon, JR. 1995. Reduction in backgrounds of microsamples for AMS 14C dating. Radiocarbon 37(2):697704.
Schleicher, M, Grootes, PM, Nadeau, M-J, Schoon, A. 1998 The carbonate 14C background and its components at the Leibniz AMS facility. Radiocarbon 40(1):8593.
Vogel, JS, Nelson, DE, Southon, JR. 1984. Performance of catalytically condensed carbon for use in accelerator mass spectrometry. Nuclear Instruments and Methods in Physics Research B5:289–93.
Vogel, JS, Nelson, DE, Southon, JR. 1987. 14C background levels in an accelerator mass spectrometry system. Radiocarbon 29(3):323–33.

Development of a Semi-Automated System for Routine Preparation of Carbonate Samples

  • N Tisnérat-Laborde (a1), J J Poupeau (a1), J F Tannau (a1) and M Paterne (a1)

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