Rare earth element (REE) in surface mangrove sediment by instrumental neutron activation analysis

Kumar, Krishnan and Saion, Elias and Halimah, M. K. and Yap, C. K. and Hamzah, Muhd Suhaimi (2014) Rare earth element (REE) in surface mangrove sediment by instrumental neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry, 301 (3). pp. 667-676. ISSN 1588-2780

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Official URL: http://link.springer.com/article/10.1007/s10967-01...


A study is carried out on the concentrations of rare earth element (REE) elements present in surface mangrove sediments from 10 locations throughout west coast Malaysia. In carrying out the analysis, the best and most convenient method being the instrumental neutron activation analysis (INAA). Samples were obtained, dried, crushed to powdery form and samples prepared for INAA. All the samples for analysis were weighted approximately 150 mg for short irradiation and 200 mg for long irradiation time. As calibration and quality control procedures, blank samples, standard reference material SL-1 were then irradiated with thermal neutron flux of 4 × 1012 cm−2 s−1 at the MINT TRIGA Mark II research reactor which operated at 750 kW by using a pneumatic transport facility. The REE elements of surface sediment samples in this study are Dy, Sm, Eu,Yb, Lu, Tb, La and Ce. It was found that the level of concentrations of all the REE elements varies in the range (0.35–117.4 mg/kg). The geochemical behavior of REEs in surface sediments and normalized pattern (chondrite and shale) has been studied. The degree of sediments contaminations were computed using an enrichment factor. The results showed that the enrichment factor varied in the range (0.75–6.75).

Item Type: Article
Uncontrolled Keywords: Rare earth elements Enrichment Radiation Neutron activation Environment
Subjects: Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering and Quantity Surveying
Depositing User: Unnamed user with email masilah.mansor@newinti.edu.my
Date Deposited: 21 Jan 2016 05:23
Last Modified: 23 Sep 2016 02:28
URI: http://eprints.intimal.edu.my/id/eprint/58

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