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Journal of Radioanalytical and Nuclear Chemistry

, Volume 322, Issue 2, pp 879–890 | Cite as

Importance of site specific data on carbon content in environmental matrices for accurate determination of carbon-14 specific activity

  • Renita Shiny D’Souza
  • S. Rashmi Nayak
  • S. Bharath
  • M. P. Mohan
  • B. N. Dileep
  • P. M. Ravi
  • N. KarunakaraEmail author
Article
  • 42 Downloads

Abstract

Carbon content (%) measurement for determination of 14C specific activity (Bq kg−1C) in environmental matrices based on thermal oxidation of the sample using pyrolyser is discussed. The carbon content in biota samples (N = 574) of the tropical region were in the range 30–45%, 28–47%, 31–46%, 32–45%, 43–49%, and 37–50% with corresponding mean values of 38 ± 3.1%, 38 ± 4.4%, 41 ± 3.1%, 41 ± 3.7%, 46 ± 1.5%, and 44 ± 5.1% respectively for wild plant leaves, vegetables, fruits, cereals, wood, and fish samples. The present study shows that carbon content within the species and category (fruit, leaves, vegetables, etc.) of the sample may differ up to ~ 20% points.

Keywords

Radiocarbon (14C) RADDEC pyrolyser Quantulus 1220 liquid scintillation spectrometer (LSS) Carbon content (%) 

Notes

Acknowledgements

The authors would like to thank the Board of Research in Nuclear Science (BRNS), DAE, Govt. of India, for funding the research program (BRNS sanction no. 2013/36/22-BRNS/3341 dated 18.03.2014). The authors would like to thank Shri. H. S. Kushwaha, Outstanding Scientist, BRNS, Mumbai for his comments, suggestions, and guidance.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  • Renita Shiny D’Souza
    • 1
  • S. Rashmi Nayak
    • 1
  • S. Bharath
    • 1
  • M. P. Mohan
    • 1
  • B. N. Dileep
    • 2
  • P. M. Ravi
    • 1
    • 3
  • N. Karunakara
    • 1
    Email author
  1. 1.Centre for Advanced Research in Environmental Radioactivity (CARER)Mangalore UniversityMangalagangothriIndia
  2. 2.Environmental Survey LaboratoryKaiga Generating StationKaigaIndia
  3. 3.Formerly with Health Physics DivisionBhabha Atomic Research CentreTrombay, MumbaiIndia

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