13-18 May 2018
Casino Conference Centre
Europe/Prague timezone

Study of 210Po in Indian tobacco using Liquid Scintillation Spectrometry

18 May 2018, 14:15
15m
Red Hall (Casino Conference Centre)

Red Hall

Casino Conference Centre

Reitenbergerova 4/95, Mariánské Lázně, Czech Republic
Verbal Radionuclides in the Environment, Radioecology RER 6

Speaker

Prof. Ulrich W. Scherer (HS Mannheim University of Applied Sciences)

Description

A fast radioanalytical method has been developed to measure 210Po in tobacco samples. After microwave digestion Polonium is extracted quantitatively from a 1 M hydrochloric acid solution into a solution of tri-octylamine in toluene. The extract was measured by Liquid Scintillation Counting in alpha mode. Caused by the high counting efficiency the counting time per sample can be reduced significantly compared to conventional alpha.spectrometry allowing for high sample throughput. The method was applied to 11 brands of cigarettes, beedis or chewing tobaccos from India. Based on the resulting activity concentrations and typical consumption habits annual and lifetime equivalent doses were calculated. They were found to be ~100-700 µSv/a or ~5-35 mSv, respectively.

Primary author

Prof. Ulrich W. Scherer (HS Mannheim University of Applied Sciences)

Co-authors

Prof. Alok Srivastava (Panjab University) Mr Vishal Tuli (Panjab University)

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