Skip to main content Accessibility help
×
Home

A High-Throughput, Low-Cost Method for Analysis of Carbonate Samples for 14C

  • Mark L Roberts (a1), Steven R Beaupré (a1) and Joshua R Burton (a1)

Abstract

The National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility at the Woods Hole Oceanographic Institution has developed an automated system for high-throughput, low-cost analysis of radiocarbon in carbonate samples (e.g. corals, carbonaceous sediments, speleothems, etc.). The method bypasses graphitization and pretreatment, and reduces costs to about 1/5th the price of a graphite-based 14C carbonate analysis, with a throughput of 60 unknowns per day and an analytical precision of better than 2%. Additionally, a simple mixing experiment indicated that extensive cleaning of carbonate samples to remove organic material is not necessary.

Copyright

Corresponding author

1 Corresponding author. Email: mroberts@whoi.edu.

References

Hide All
Bak, RPM, Laane, RWPM. 1987. Annual black bands in skeletons of reef corals (Scleractinia). Marine Ecology Progress Series 38:169–75.
Bard, E, Hamelin, B, Fairbanks, RG, Zindler, A. 1990. Calibration of the 14C timescale over the past 30,000 years using mass spectrometric U-Th ages from Barbados corals. Nature 345(6274):405–10.
Burr, GS, Edwards, RL, Donahue, DJ, Druffel, ERM, Taylor, FW. 1992. Mass spectrometric 14C and U-Th measurements in coral. Radiocarbon 34(3):611–8.
Druffel, ERM. 1997. Geochemistry of corals: proxies of past ocean chemistry, ocean circulation, and climate. Proceedings of the National Academy of Science of the USA 94(16):8354–61.
Ingalls, AE, Lee, C, Druffel, ERM. 2003. Preservation of organic matter in mound-forming coral skeletons. Geochimica et Cosmochimica Acta 67(15):2877–41.
McIlvin, MR, Casciotti, KL. 2010. Fully automated system for stable isotopic analyses of dissolved nitrous oxide at natural abundance levels. Limnology and Oceanography: Methods 8:5466.
Roberts, ML, von Reden, KF, Burton, JR, McIntyre, CP, Beaupré, SR. 2013. A gas-accepting ion source for accelerator mass spectrometry: progress and applications. Nuclear Instruments and Methods in Physics Research B 294:296–9.
Rozanski, K, Stichler, W, Gonfiantini, R, Scott, EM, Beukens, RP, Kromer, B, van der Plicht, J. 1992. The IAEA 14C Intercomparison Exercise 1990. Radiocarbon 34(3):506–19.
Scott, EM. 2006. Section 10: summary and conclusions. Radiocarbon 45(2):285–90.
von Reden, KF, Roberts, ML, Jenkins, WJ, Rosenheim, BE, McNichol, AP, Schneider, RJ. 2008. Software development for continuous-gas-flow AMS. Nuclear Instruments and Methods in Physics Research B 266(10):2233–7.
Wainright, SA. 1962. An anthozoan chitin. Experientia 18:18–9.
Wierzbowski, H. 2007. Effects of pre-treatments and organic matter on oxygen and carbon isotope analyses of skeletal and inorganic calcium carbonate. International Journal of Mass Spectrometry 268(1):1629.
Yokoyama, Y, Esat, TM, Lambeck, K, Fifield, LK. 2000. Last ice age millennial scale climate changes recorded in Huon Peninsula corals. Radiocarbon 42(3):383–401.

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed