Open AccessInstrumental Neutron Activation Analysis (INAA) of Cisadane Estuarine Sediments
Author(s) -
Ali Arman Lubis
Publication year - 2018
Publication title -
jurnal natur indonesia/jurnal natur indonesia
Language(s) - English
Resource type - Journals
eISSN - 2503-0345
pISSN - 1410-9379
DOI - 10.31258/jnat.10.1.58-65
Subject(s) - neutron activation analysis , research reactor , sediment , thorium , neutron activation , radiochemistry , neutron flux , neutron temperature , deposition (geology) , semiconductor detector , environmental science , mineralogy , neutron , uranium , materials science , chemistry , nuclear physics , geology , physics , detector , metallurgy , paleontology , optics
Nuclear analytical technique instrumental neutron activation analysis was employed for the multielemental analysis of sediments collected from Cisadane estuary. This analytical technique provides concentration of 20 elementswhich consist of heavy metals and rare earth elements simultaneously. Two sediments cores were collected using core sampler for determining the distribution of all elements in the depth profiles of sediments. Sediment cores were subdivided into 2 cm increment, dried and sent to reactor for irradiation using thermal flux of ?1013 neutrons.cm-2.s-1 for 20 minutes in Research Reactor Siwabessy, National Nuclear Energy Agency (BATAN), Serpong. Irradiated samples were measured using a multichannel analyzer (MCA) gamma spectrometer coupled with high purity germanium detector. Analysis of particle size was done since uptake of heavy metals by sediments is particle-size dependent. The results are presented and discussed.