1. Laboratory
of Research and Development of Methodologies for Analysis of Oils
(LabPetro), Chemistry Department, Federal University of Espírito Santo, Avenida Fernando Ferrari, 514, Goiabeiras, 29075-910 Vitória, Espírito
Santo, Brazil
2. Institute
of Chemistry, State University of Campinas, Post Office Box 6154, 13084-971 Campinas, São Paulo, Brazil
3. CENPES, Petrobras, Avenida Jequitiba, 21941-598 Rio de Janeiro, Rio de Janeiro, Brazil
4. North Center of the Espírito Santo University, North Rod BR101, Km 60, Coastal District, 29932-540 São Mateus, Espírito Santo, Brazil