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REPRODUCIBILITY OF CO2 ABSORPTION METHOD FOR MEASUREMENT OF RADIOCARBON USING A PARR BOMB AND LSC

  • Irina Vagner (a1), Carmen Varlam (a1), Denisa Faurescu (a1), Diana Bogdan (a1) and Ionut Faurescu (a1)...

Abstract

The CO2 absorption and liquid scintillation counting (LSC) are methods used in radioactivity monitoring programs of nuclear facilities for 14C measurements due to high number of samples and relatively high expected level of 14C concentration. The paper describes the chemical sample preparation applied to a quality control material (IAEA-C3 Cellulose), in order to evaluate the reproducibility of CO2 absorption method for this type of material. Consequently, in the experiments we used two home-made scintillation cocktails, containing two amines, 2-methoxyethylamine (MEA) and 3-methoxypropyl amine (MPA), which detained CO2 as carbamates. Due to the fact that the material used in the dedicated experiments is cellulose (contained in all vegetable materials), the method can be considered as appropriate for 14C determination from biological and vegetable materials.

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*Corresponding author. Email: irina.vagner@icsi.ro.

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Selected Papers from the 23rd International Radiocarbon Conference, Trondheim, Norway, 17–22 June, 2018

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References

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Burchuladze, AA, Pagava, SV, Povinec, P, Togonidze, GI, Usačev, S. 1980. Radiocarbon variations with the 11-year solar cycle during the last century. Nature 287:320322.
Canducci, C, Bartolomei, P, Magnani, G, Rizzo, A, Piccoli, A, Tositti, L, Esposito, M. 2013. Upgrade of the CO2 direct absorption method for low-level 14C liquid scintillation counting. Radiocarbon 55(2–3):260267.
Galeriu, D, Melintescu, A, Beresford, NA, Crout, NMJ, Peterson, R, Takeda, H. 2007. Modeling 3H and 14C transfer to farm animals and their products under steady state conditions. Journal of Environmental Radioactivity 98:205217.
IAEA (International Atomic Energy Agency). 2004. Management of waste containing tritium and carbon-14. Technical Reports, Series 421.
IAEA (International Atomic Energy Agency). 2014. Reference Sheet for Quality Control Materials. RS_IAEA-C1 to IAEA-C9.Rev.01 / 2014-03-24.
IRSN (Institute de Radioprotection et de Surete Nucleaire). 2018. Radionuclide fact sheet—carbon-14 and the environment. Available at: https://www.irsn.fr/EN/Research/publications-documentation/radionuclides-sheets/environment/Pages/carbon14-environment.aspx. Accessed 22 August 2018.
Harms, A, Gilligan, C. 2009. Environmental radioactivity proficiency test exercise 2008. NPL Report IR 15. Available at : http://www.npl.co.uk/upload/pdf/2008_final_report.pdf. Accessed 22 January 2019.
Horvatinčić, N, Barešic, J, Krajcar Bronić, I, Obelić, B. 2004. Measurement of low 14C activities in a liquid scintillation counter in the Zagreb radiocarbon laboratory. Radiocarbon 46(1):105116.
Hua, Q, Barbetti, M, Rakowski, AJ. 2013. Atmospheric radiocarbon for the period 1950–2010. Radiocarbon 55(4):20592072.
Kotzer, TG, Watson, WL. 1999. Spatial and temporal distribution of 14C in cellulose in tree rings in central and eastern Canada: comparison with long-term atmospheric and environmental data. AECL-12002.
Krajcar Bronić, I, Horvatinčić, N, Baresić, J, Obelić, B. 2009. Measurement of 14C activity by liquid scintillation counting. Applied Radiation and Isotopes 67:800804
Molnár, M, Nagy, S, Svingor, É, Svetlik, I. 2006. Refining the CO2 absorption method for low-level 14C liquid scintillation counting in the ATOMKI. In: Chalupnik, S, Schönhofer, F, Noakes, J, editors. LSC 2005: Advances in Liquid Scintillation Spectrometry. Tucson (AZ): Radiocarbon. p. 407415.
Moore, JB, Noakes, JE, Spaulding, JD. 1993. Environmental monitoring of 14C in milk and agricultural samples. In: Noakes, JE, Schönhofer, F, Polach, HA, editors. Liquid Scintillation Spectrometry 1992. Tucson (AZ): Radiocarbon. p. 447453.
Ota, M, Nagai, H, Koarashi, J. 2012. A land surface 14C transfer model and numerical experiments on belowground 14C accumulation and its impact on vegetation 14C level. Journal of Environmental Radioactivity 107:1322.
Saxen, R, Hanste, UM. 2009. Anoxidizer/LSC method for the determination of 14C in foodstuff samples. In: Eikenberg, J, Jäggi, M, Beer, H, Baehrle, H, editors. LSC 2008: Advances in Liquid Scintillation Spectrometry. Tucson (AZ): Radiocarbon. p. 279285.
Singleton, DL, Sanchez, AL, Woods, C. 2002. A comparison of two techniques to determine carbon-14 in environmental samples. Journal of Radioanalytical and Nuclear Chemistry 251(3):353357.
UNSCEAR (United Nations Scientific Committee on the Effects of Atomic Radiation). 2000. Sources and effects of ionizing radiation. UNSCEAR 2000 Report to the General Assembly. Volume I: Sources, Annex A. New York: United Nations. p. 5153.
Vagner, I, Varlam, C, Faurescu, I, Faurescu, D. 2015. Organically bound tritium level in vegetation at ICIT tritium removal facility. Journal of Radioanalytical and Nuclear Chemistry 303:25592563.
Vagner, I, Varlam, C, Faurescu, I, Faurescu, D, Bucura, F. 2017. Comparison of two methods for 14C analysis from essential oils using LSC. Journal of Radioanalytical and Nuclear Chemistry 314:709713.
Varlam, C, Stefanescu, I, Varlam, M, Popescu, I, Faurescu, I. 2007. Applying the direct absorption method and LSC for 14C concentration measurement in aqueous samples. Radiocarbon 49(2):281289.
Verrezen, F, Loots, H, Hurtgen, C. 2008. A performance comparison of nine selected liquid scintillation cocktails. Open Report of the Belgian Nuclear Research Center, SCK-CEN-BLG-1052.
Wu, SG. 2017. Variation of atmospheric 14CO2 and its spatial distribution. Journal of Environmental Radioactivity 169–170:116121.

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