1. Pesticide Residue Laboratory, Environmental Protection Research Center, Biological Institute, São Paulo, São Paulo 04014-900, Brazil
2. Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, United States
3. Department of Toxicology and Residues Monitoring, Food Safety and Veterinary Institute, 1001 Tirana, Albania