1. Department
of Radiochemistry of the Higher Institute of Technologies and Applied Sciences (INSTEC) Avenida Salvador Allende y Luaces, La Habana, Cuba A.PP.
6163
2. Department
of Chemistry, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ 22453-900, Brazil
3. Methodological
Department of the University of Havana, San Lázaro y L, La Habana, Cuba A.PP.
6163
4. University of Toulouse, Institut National Polytechnique, ENSIACET, BP 44362, 31030 Toulouse Cedex 4, France