1. ThoMSon Mass Spectrometry Laboratory; Department of Analytical Chemistry, Institute of Chemistry; University of Campinas - UNICAMP; 13083-970 Campinas, SP Brazil
2. Technical-Scientific Police Superintendency from São Paulo State; Criminalistic Institute, 05507-060; São Paulo, SP Brazil
3. Brazilian Federal Police; Scientific and Technical Dept.; 70037-900 Brasília, DF Brazil
4. National Institute of Metrology; Quality and Technology - INMETRO; 25250-020 Duque de Caxias, RJ Brazil
5. Fenn Laboratory of Mass Spectrometry; Federal University of Paraná; Paraná Brazil