1. Department of Chemistry-Institute of Exact Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG31270-901, Brazil
2. Federal Laboratory of Animal and Plant Health and Inspection, Ministry of Agriculture, Livestock and Food Supply, Av. Rômulo Joviano s/n, Pedro Leopoldo, MG 33600-000, Brazil
3. Veterinary School, Federal University of Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG 30123-970, Brazil