Author Details

da Silva, Maria Fátima das Graças Fernandes, Department of Chemistry, Federal University of Sao Carlos, Rod. Washington Luiz, Km 235, P.B. 676, Sao Carlos-SP, Zip code 13.565-905, Brazil.Tel. +55(16) 3351.8299, Fax: +55(16)3351-8350., Brazil