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Passive sampling technique for atmospheric 14C measurements

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Abstract

The present study focused on the measurement of 14C levels by using a passive sampling technique. The sampling period is optimized by exposing the 0.5 N NaOH solution to air and measuring the amount of carbon absorbed. The optimum sampling duration for measurement of 14C in the atmospheric CO2 is found as one day. The absorbed CO2 in NaOH solution was recovered by adding barium chloride, and an average recovery yield was found to be 98.67 ± 0.29%. The average specific activity of 14C for samples collected in two locations is 239.04 ± 25.45 Bq/kg C and 242.89 ± 18.22 Bq/kg C.

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Acknowledgements

The authors are grateful to Ms. I. Vijalakshmi and Ms. Y. Ramani from Radiation Safety and Environmental Division, IGCAR, for their support during experimental work.

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B.A. Conceptualization, Experimental Analysis, Investigation, data analysis, and writing the manuscript. S.V.: responsible for formal analysis. M.M.: Review & editing. R.V.: Review & editing. M.T.J.: Conceptualization, Writing- Review & editing, Investigation, Visualization, Resources, Supervision. B.V.: Resources, Supervision, Project administration.

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Correspondence to B. Arun.

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Arun, B., Viswanathan, S., Menaka, M. et al. Passive sampling technique for atmospheric 14C measurements. J Radioanal Nucl Chem 331, 799–805 (2022). https://doi.org/10.1007/s10967-021-08177-x

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  • DOI: https://doi.org/10.1007/s10967-021-08177-x

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