1. Institute of Chemistry University of Sao Paulo Av Prof Lineu Prestes 748 Sao Paulo 05508-000 Brazil
2. Nucleus of Education and Research in Oil and Gas Department of Chemical Engineering Federal University of Rio Grande do Norte Av Senador Salgado Filho Natal 59078-970 Brazil
3. Department of Chemistry Federal University of Maranhao Avenida dos Portugueses 1966 São Luís 65080-805 Brazil