MAURICIO HIROMITU KAKAZU

(Fonte: Lattes)
ScopusID
Resumo

Possui graduação em Química pela Universidade de São Paulo(1977) e mestrado em Tecnologia Nuclear pelo Instituto de Pesquisas Energéticas E Nucleares(1980). Atualmente é pesquisador do Instituto de Pesquisas Energéticas E Nucleares. Tem experiência na área de Química, com ênfase em Química Analítica. (Texto extraído do Currículo Lattes em 2 maio 2023)

Projetos de Pesquisa
Unidades Organizacionais
Cargo

Filtros

2001 - 20052
Limpar filtros

Configurações

Tipo de acesso: openAccess × Fator de Impacto: 1.500 - 2.999 ×

Resultados de Busca

Agora exibindo 1 - 2 de 2
  • Imagem de Miniatura
    Artigo IPEN-doc 08320
    Role of early GnRH administration in sexual behavior disorders of rat pups perinatally exposed to lead
    2001 - SANT'ANA, M.G.; SPINOSA, H.S.; FLORIO, J.C.; BERNARDI, M.M.; OLIVEIRA, C.A.; SARKIS, J.E.S.; KAKAZU, M.H.
  • Imagem de Miniatura
    Artigo IPEN-doc 10392
    PGEs and other traffic-related elements in roadside soils from Sao Paulo, Brazil
    2005 - MORCELLI, C.P.R.; FIGUEIREDO, A.M.G.; SARKIS, J.E.S.; ENZWEILER, J.; KAKAZU, M.; SIGOLO, J.B.
    The distribution of platinum, palladium, and rhodium in soils adjacent to a major road in São Paulo, Brazil, is presented. Sampling was made at four sites with varying traffic volumes and driving styles (stop/start vs. constant speed). High-resolution inductively coupled plasma mass spectrometry (HR-ICP-MS) with NiS fire assay collection and Te coprecipitation was used as analytical procedure. The platinum group element (PGE) pattern distribution in the analyzed roadside soil was similar to that of other traffic-related elements such as Zn and Cu, characterized by a strong decrease of the PGE content with increasing distance from the traffic lane. The results indicate that the PGE concentrations in roadside soil are directly influenced by traffic conditions and distance, which characterize their catalytic converter origin. Pt, Pd, and Rh contents range between 0.3 and 17 ng g−1, 1.1 and 58 ng g−1, and 0.07 and 8.2 ng g−1 respectively. Lower levels of Pt and lower Pt/Pd ratios in relation to similar studies in other countries were observed due to the different Pt/Pd ratios in Brazilian automobile catalytic converters. This is the first study to assess traffic-derived Pt, Pd, and Rh deposition in Brazil.