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The chemical speciation and analysis of trace elements in sediment with neutron activation analytical method(NAA) and atomic mass spectrometry  

Nam, Sang-Ho (Korea Atomic Energy Research Institute)
Kim, Jae-Jin (Department of chemistry)
Chung, Yong-Sam (Department of chemistry)
Kim, Sun-Ha (Department of chemistry)
Publication Information
Analytical Science and Technology / v.16, no.5, 2003 , pp. 358-367 More about this Journal
Abstract
In this research, first of all, the analytical methods for the determination of major elements in sediment have been developed with ICP-MS (Inductively Coupled Plasma Mass Spectrometry). The analytical results of major elements (Al, Ca, K, Fe, Mg) with Cool ICP-MS were much better than those with normal ICP-MS. The analytical results were compared with those of NAA (Neutron Activation Analysis). NAA were a little superior to ICP-MS for the determination of major elements in sediment as a non-destructive trace analytical method. The analytical methods for the determination of minor elements (Cr, Ce, U, Co, Pb, As, Se) have been also developed with ICP-MS. The analytical results by standard calibration curve with ICP-MS were not accurate due to the matrix interferences. Thus, the internal standard method was applied, then the analytical results for minor elements with ICP-MS were greatly improved. The analytical results obtained by ICP-MS were compared with those obtained by NAA. It showed that the two analytical methods have great capabilities for the determination of minor elements in sediments. Accordingly, the NAA will play an important role in analysis of environment sample with complex matrix. ICP-MS also will play an important role because it has a great capability for the determination of Pb that could not be determined by NAA.
Keywords
Neutron Activation Analysis; ICP-MS; Environmental Sample; Sediment;
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