1. Group of Analysis and Education for Sustainability, Chemistry Department, Centre of Exact and Technology Sciences, Federal University of Viçosa, Av. P. H. Rolfs, s/n, Viçosa 36570-900, MG, Brazil
2. Center of Nuclear Energy in Agriculture, University of São Paulo, Av. Centenário, 303, Piracicaba 13416-000, SP, Brazil