ARMELIN, MARIA J.A.MOREIRA, EDSON G.2019-12-032019-12-03ARMELIN, MARIA J.A.; MOREIRA, EDSON G. Importance of the neutron activation analysis for the determination of elements in different organic materials. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 21-25, 2019, Santos, SP. <b>Proceedings...</b> Rio de Janeiro: Associação Brasileira de Energia Nuclear, 2019. p. 621-627. Disponível em: http://repositorio.ipen.br/handle/123456789/30414.http://repositorio.ipen.br/handle/123456789/30414Instrumental Neutron Activation Analysis (INAA) was the analytical technique used to determine the concentrations of As, Ba, Br, Ca, Ce, Cl, Co, Cr, Fe, La, K, Mg, Mn, Pr, Sb, Sm, V and Zn in the following materials: petroleum, rubber, plastics and petroleum coke. The precision of the results were mostly between 1 and 20%. The technique is non-destructive and fast for Cl, Cu, Mg and V analyses. For this reason, INAA showed to be a good option to be applied in organic matrices.621-627openAccesscokeconcentration ratioelementsneutron activation analysisnondestructive testingpetroleumplasticsquantitative chemical analysisrubbersTexto completo de evento