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Novel Laser Ablation Sampling Device for the Rapid Radiocarbon Analysis of Carbonate Samples by Accelerator Mass Spectrometry

Published online by Cambridge University Press:  17 February 2016

C Welte ,
L Wacker ,
B Hattendorf ,
M Christl ,
J Koch ,
H-A Synal  and
D Günther
C Welte
Affiliation:
Laboratory of Inorganic Chemistry, D-CHAB, ETHZ, Vladimir-Prelog Weg 1, 8093 Zurich, Switzerland. Laboratory of Ion Beam Physics, ETHZ, Otto-Stern Weg 5, HPK, 8093 Zurich, Switzerland.
L Wacker*
Affiliation:
Laboratory of Ion Beam Physics, ETHZ, Otto-Stern Weg 5, HPK, 8093 Zurich, Switzerland.
B Hattendorf*
Affiliation:
Laboratory of Inorganic Chemistry, D-CHAB, ETHZ, Vladimir-Prelog Weg 1, 8093 Zurich, Switzerland.
M Christl
Affiliation:
Laboratory of Ion Beam Physics, ETHZ, Otto-Stern Weg 5, HPK, 8093 Zurich, Switzerland.
J Koch
Affiliation:
Laboratory of Inorganic Chemistry, D-CHAB, ETHZ, Vladimir-Prelog Weg 1, 8093 Zurich, Switzerland.
H-A Synal
Affiliation:
Laboratory of Ion Beam Physics, ETHZ, Otto-Stern Weg 5, HPK, 8093 Zurich, Switzerland.
D Günther
Affiliation:
Laboratory of Inorganic Chemistry, D-CHAB, ETHZ, Vladimir-Prelog Weg 1, 8093 Zurich, Switzerland.
*
*Corresponding author. Email: wacker@phys.ethz.ch.
*Corresponding author. Email: wacker@phys.ethz.ch.
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Abstract

Conventional radiocarbon analysis of carbonate records with accelerator mass spectrometry (AMS) is time consuming and the achievable spatial resolution is limited, because individual samples have to be taken and need to be converted to graphite for the measurement. A new laser ablation (LA) in situ sampling technique for rapid online 14C analyses of carbonate records by AMS is presented. By focusing a 193-nm ArF excimer laser on carbonate samples, carbon dioxide is generated and can directly be introduced into the gas ion source of an AMS. A dedicated LA cell for AMS was constructed in a way that combines rapid gas exchange with the capacity to carry sample specimen with maximum dimensions of 15×2.5×1.5 cm3. With the presented setup, negative carbon ion currents up to 20 µA were achieved. A low 14C background of 0.011±0.002 F14C was observed on 14C-free marble and different standard and reference materials could be well reproduced within errors. The novel technique allows scanning carbonate samples continuously over several cm per hour with achievable measurement precisions of less than 1% for modern samples. This approach allows acquiring highly spatially resolved 14C records at a far higher rate than with any currently available method.

Keywords

radiocarbonlaser ablationcarbonategas ion source
Type
Research Article
Information
Radiocarbon , Volume 58 , Issue 2 , June 2016 , pp. 419 - 435
Copyright
© 2016 by the Arizona Board of Regents on behalf of the University of Arizona 

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References

REFERENCES

Bäuerle, D. 2000. Laser Processing and Chemistry. Berlin: Springer.Google Scholar
Durrant, SF, Ward, NI. 2005. Recent biological and environmental applications of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Journal of Analytical Atomic Spectrometry 20(9):821–829.CrossRefGoogle Scholar
Edwards, RL, Gallup, CD, Cheng, H. 2003. Uranium-series dating of marine and lacustrine carbonates. Uranium-Series Geochemistry 52:363–405.Google Scholar
Fahrni, SM, Wacker, L, Synal, H-A, Szidat, S. 2013. Improving a gas ion source for 14C AMS. Nuclear Instruments and Methods in Physics Research B 294:320–327.CrossRefGoogle Scholar
Fernandez, B, Claverie, F, Pecheyran, C, Donard, OFX. 2007. Direct analysis of solid samples by fs-LA-ICP-MS. Trac-Trends in Analytical Chemistry 26(10):951–966.Google Scholar
Fohlmeister, J, Kromer, B, Mangini, A. 2011. The influence of soil organic matter age spectrum on the reconstruction of atmospheric 14C levels via stalagmites. Radiocarbon 53(1):99–115.Google Scholar
Fohlmeister, J, Schroeder-Ritzrau, A, Scholz, D, Spoetl, C, Riechelmann, DFC, Mudelsee, M, Wackerbarth, A, Gerdes, A, Riechelmann, S, Immenhauser, A, Richter, DK, Mangini, A. 2012. Bunker Cave stalagmites: an archive for central European Holocene climate variability. Climate of the Past 8(5):1751–1764.Google Scholar
Gao, P, Xu, X, Zhou, L, Pack, MA, Griffin, S, Santos, GM, Southon, JR, Liu, K. 2014. Rapid sample preparation of dissolved inorganic carbon in natural waters using a headspace-extraction approach for radiocarbon analysis by accelerator mass spectrometry. Limnology and Oceanography-Methods 12:174–190.Google Scholar
Gray, AL. 1985. Solid sample introduction by laser ablation for inductively coupled plasma source-mass spectrometry. Analyst 110(5):551–556.Google Scholar
Hodge, E, McDonald, J, Fischer, M, Redwood, D, Hua, Q, Levchenko, V, Drysdale, R, Waring, C, Fink, D. 2011. Using the 14C bomb pulse to date young speleothems. Radiocarbon 53(2):345–357.Google Scholar
Koch, J, Guenther, D. 2011. Review of the state-of-the-art of laser ablation inductively coupled plasma mass spectrometry. Applied Spectroscopy 65(5):155A–162AA.Google Scholar
Pisonero, J, Fernandez, B, Guenther, D. 2009. Critical revision of GD-MS, LA-ICP-MS and SIMS as inorganic mass spectrometric techniques for direct solid analysis. Journal of Analytical Atomic Spectrometry 24(9):1145–1160.Google Scholar
Reimer, PJ, Brown, TA, Reimer, RW. 2004. Discussion: reporting and calibration of post-bomb 14C data. Radiocarbon 46(3):1299–1304.Google Scholar
Rosenheim, BE, Thorrold, SR, Roberts, ML. 2008. Accelerator mass spectrometry 14C determination in CO2 produced from laser decomposition of aragonite. Rapid Communications in Mass Spectrometry 22(21):3443–3449.Google Scholar
Rozanski, K, Stichler, W, Gonfiantini, R, Scott, EM, Beukens, RP, Kromer, B, van der Plicht, J. 1992. The IAEA 14C Intercomparison Excercise 1990. Radiocarbon 34(3):506–519.Google Scholar
Rudzka-Phillips, D, McDermott, F, Jackson, A, Fleitmann, D. 2013. Inverse modelling of the 14C bomb pulse in stalagmites to constrain the dynamics of soil carbon cycling at selected European cave sites. Geochimica et Cosmochimica Acta 112:32–51.Google Scholar
Ruff, M, Wacker, L, Gaeggeler, HW, Suter, M, Synal, H-A, Szidat, S. 2007. A gas ion source for radiocarbon measurements at 200 kV. Radiocarbon 49(2):307–314.Google Scholar
Stuiver, M. 1983. International agreements and the use of the new oxalic-acid standard. Radiocarbon 25(2):793–795.Google Scholar
Sundqvist, HS, Holmgren, K, Fohlmeister, J, Zhang, Q, Bar Matthews, M, Spotl, C, Kornich, H. 2013. Evidence of a large cooling between 1690 and 1740 AD in southern Africa. Scientific Reports 3.Google Scholar
Synal, H-A, Stocker, M, Suter, M. 2007. MICADAS: a new compact radiocarbon AMS system. Nuclear Instruments and Methods in Physics Research B 259(1):7–13.Google Scholar
Wacker, L, Christl, M, Synal, H-A. 2010. Bats: a new tool for AMS data reduction. Nuclear Instruments and Methods in Physics Research B 268(7–8):976–979.Google Scholar
Wacker, L, Muensterer, C, Hattendorf, B, Christl, M, Guenther, D, Synal, H-A. 2013. Direct coupling of a laser ablation cell to an AMS. Nuclear Instruments and Methods in Physics Research B 294:287–290.Google Scholar