Measurement of super(224)Ra and super(223)Ra activity using MnO sub(2) based in situ pre-concentration technique coupled with delayed coincidence counting in creek ecosystem of Mumbai Harbour Bay

Measurement of short lived radium isotopes ( super(224)Ra and super(223)Ra) in seawater samples collected from Mumbai Harbour Bay was carried out using MnO sub(2) based in situ pre-concentration technique coupled with delayed coincidence counting. Standardisation and validation of various parameters...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2017-01, Vol.311 (1), p.565-570
Main Authors: Yadav, V B, Sartandel, S J, Jha, S K, Tripathi, R M
Format: Article
Language:English
Online Access:Get full text
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Summary:Measurement of short lived radium isotopes ( super(224)Ra and super(223)Ra) in seawater samples collected from Mumbai Harbour Bay was carried out using MnO sub(2) based in situ pre-concentration technique coupled with delayed coincidence counting. Standardisation and validation of various parameters required for quantification was carried out. Longitudinal variation of super(224)Ra and super(223)Ra found in the range 17.74-98.66 and 0.56-2.26 dpm 100 L super(-1) respectively. Elevated concentration of super(224)Ra and super(223)Ra was found near shore sampling points where reused seawater and surface water from land intrudes in creek. Higher concentration in creek compared to offshore locations indicates presence of submarine groundwater discharge.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-016-5103-z