alexa Estimation of 232Th Concentration in Environmental Matr
ISSN: 2380-2391

Journal of Environmental Analytical Chemistry
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Research Article

Estimation of 232Th Concentration in Environmental Matrices by Tracking Activity of Major Daughter Products (212Bi, 212Pb and 228Ac) with Time in a Hermetically Sealed Container

Singhal RK1*, Basu H1, Saha S1, Kumar A2 and Pimple MV1

1Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Maharashtra, India

2Health Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Maharashtra, India

*Corresponding Author:
RK Singhal
Analytical Chemistry Division, Bhabha Atomic Research Centre
Trombay, Mumbai-400 085, Maharashtra, India
Tel: +912225505050
E-mail: [email protected]

Received date: September 01, 2016; Accepted date: September 20, 2016; Published date: September 22, 2016

Citation: Singhal RK, Basu H, Saha S, Kumar A, Pimple MV (2016) Estimation of 232Th Concentration in Environmental Matrices by Tracking Activity of Major Daughter Products (212Bi, 212Pb and 228Ac) with Time in a Hermetically Sealed Container. J Environ Anal Chem 3:186. doi:10.4172/2380-2391.1000186

Copyright: © 2016 Singhal RK, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Concentration of 212Bi, 212Pb and 228Ac were tracked at different time intervals for 33 days in IAEA-RGTh-1 reference material having 2.89% Th and soil collected from ambient environment. In case of reference material, mean concentration of 232Th evaluated using gamma energy line of 228Ac (912 keV) and 212Bi (728 keV) shows a deviation of only 0.05%, and 5.66% respectively from the certified mean value of 232Th, whereas a large negative deviation of 29.9% was observed in the case of 212Pb (239 keV). Th-232 concentration in soil sample as evaluated using above three different gamma lines shows a variation of only 10-13%.

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