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Journal of Radioanalytical Chemistry

, Volume 27, Issue 2, pp 345–351 | Cite as

Estimation of rare and radioactive constitutents in samples of Indian tobacco with the aid of low-level beta-counter

  • B. C. Purkayastha
  • D. K. Bhattacharyya
Article

Abstract

The study of the Nicotiana rustica variety from North Bengal, revealed that the respective amounts of radioactive nuclei40K,90Sr,90Y and rare earth activity as well as210Pb were found to be 4.04, 2.42, 4.52, and 0.052 pCi/g of cured leaves. In another investigation with Nicotiana tabaccum variety from Rajahmundri, Andhra Pradesh, contents of40K,90Sr,90Y and rare earth activity, and210Pb were observed to be 4.06, 1.02, 3.44 and 0.20 pCi/g of cured leaves, respectively. Results indicate that the amount of polonium which is presumably in equilibrium with RaD in these two varieties of Indian tobacco leaves is very small. Detailed studies on different varieties of Indian tobacco are in progress.

Keywords

Radon Cesium Fission Product Tobacco Leave LaF3 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Akadémiai Kiadó 1975

Authors and Affiliations

  • B. C. Purkayastha
    • 1
  • D. K. Bhattacharyya
    • 1
  1. 1.Nuclear Chemistry DivisionSaha Institute of Nuclear PhysicsCalcuttaIndia

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