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A Minivial for Small-Sample 14C Dating

Published online by Cambridge University Press:  18 July 2016

Lauri Kaihola ,
Hannu Kojola  and
Aarne Heinonen
Lauri Kaihola
Affiliation:
Instrument Research Department, Wallac Oy, P. O. Box 10, SF-20101 Turku, Finland
Hannu Kojola
Affiliation:
Instrument Research Department, Wallac Oy, P. O. Box 10, SF-20101 Turku, Finland
Aarne Heinonen
Affiliation:
Instrument Research Department, Wallac Oy, P. O. Box 10, SF-20101 Turku, Finland
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Abstract

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We have designed a 0.3-ml Teflon minivial for 14C dating of small samples in a liquid scintillation counter. We use a special adapter of standard vial size to optimize the position of the vial with respect to the phototubes and to intercept the light path between them, thus reducing optical cross-talk. Better performance can be achieved by using customized vials than by diluting small samples for counting in large vials. We have achieved counting efficiencies up to 80% in 0.3-ml vials typically with 0.05 cpm background.

Type
I. Sample Preparation and Measurement Techniques
Information
Radiocarbon , Volume 34 , Issue 3: Proceedings of the 14th International Radiocarbon Conference , 1992 , pp. 402 - 405
Copyright
Copyright © The American Journal of Science 

References

Calf, G. E. and Polach, H. A. 1974 Teflon vials for liquid scintillation counting of tritium samples. In Stanley, P. E. and Scoggins, B. A., eds., Liquid Scintillation Counting: Recent Developments. New York, Academic Press: 223–234.CrossRefGoogle Scholar
Gupta, S. K. and Polach, H. A. 1985 Radiocarbon Dating Practices at ANU. Canberra, The Australian National University.Google Scholar
Haas, H. 1979 Specific problems with liquid scintillation counting of small benzene volumes and background count rates estimation. In Berger, R. and Suess, H. E., eds., Proceedings of the 9th International 14C Conference. Radiocarbon Dating. Berkeley, University of California Press: 246–255.Google Scholar
Haas, H. and Trigg, V. 1991 Low-level scintillation counting with a LKB Quantulus counter; establishing optimal parameter settings. In Ross, H., Noakes, J. E. and Spaulding, J. D., eds., Liquid Scintillation Counting and Organic Scintillators. Chelsea, Michigan, Lewis Publishers, Inc.: 669–675.Google Scholar
Hogg, A. G. 1992 Assessment of 0.3-ml minivials for liquid scintillation counting of benzene. In Long, A. and Kra, R. S., eds., Proceedings of the 14th International 14C Conference. Radiocarbon, this volume.CrossRefGoogle Scholar
Hogg, A. G. and Noakes, J. E. 1992 Evaluation of high-purity synthetic silica vials in active and passive vial holders for liquid scintillation counting of benzene. Radiocarbon, this issue.CrossRefGoogle Scholar
Hogg, A., Polach, H., Robertson, S. and Noakes, J. 1991 Application of high purity synthetic quartz vials to liquid scintillation low-level 14C counting of benzene. In Ross, H., Noakes, J. E. and Spaulding, J. D., eds., Liquid Scintillation Counting and Organic Scintillators. Chelsea, Michigan, Lewis Publishers, Inc.: 123–131.Google Scholar
Kuc, T. and Rozanski, K. 1978 A small volume Teflon-copper vial for 14C low-level liquid scintillation counting. International Journal of Applied Radiation and Isotopes 30: 452–454.CrossRefGoogle Scholar
Polach, H., Gover, J., Kojola, H. and Heinonen, A. 1983 An ideal vial and cocktail for low-level scintillation counting: Copper-shielded PTFE (Teflon) and butyl-PBD. In McQuarrie, S. A., Ediss, C. and Wiebe, L. I., eds., Advances in Scintillation Counting. Edmonton, Alberta, University of Alberta: 508–525.Google Scholar
Polach, H., Kaihola, L., Robertson, S. and Haas, H. 1988 Small sample 14C dating by liquid scintillation spectrometry. Radiocarbon 30(2): 153–155.CrossRefGoogle Scholar