Browsing by Subject "Lead"
Now showing items 1-9 of 9
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Association between heavy metal exposure and poor working memory and possible mediation effect of antioxidant defenses during aging
(Elsevier Science Bv, 2017)Background: Inverse associations have been observed between memory performance and blood concentrations of cadmium (Cd) and lead (Pb). Low antioxidant cell activity has also been linked to decline in memory due to aging. ...
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Avaliação da exposição ao chumbo em trabalhadores de cooperativas de reciclagem da região metropolitana de São Paulo
(Universidade Federal de São Paulo, 2013-11-29)In this study the availability and quantification of lead in recycling cooperatives and in nails of collectors of recyclable materials was performed in the metropolitan São Paulo, assessing the possible metal impacts on ...
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Avaliação da influência de polimorfismos do gene da metalotioneína MT2A sobre as concentrações de chumbo (Pb) no sangue, plasma e urina de trabalhadores expostos ao metal
(Universidade Federal de São Paulo, 2020-05-28)O chumbo (Pb) é o segundo elemento mais tóxico, atrás apenas do arsênio (As), e está presente em abundancia na crosta terrestre. O metal é utilizado principalmente na fabricação de baterias automotivas. A exposição ao Pb ...
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Determination of Cd, Cr and Pb in phosphate fertilizers by laser-induced breakdown spectroscopy
(Elsevier B.V., 2014-07-01)A validated method for quantitative determination of Cd, Cr, and Pb in phosphate fertilizers by laser-induced breakdown spectroscopy (LIBS) is presented. Laboratory samples were comminuted and homogenized by cryogenic or ...
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A forensic study: Lead determination in gunshot residues
(Elsevier B.V., 2012-03-01)Electrochemical lead analyses of gunshot residues (GSRs) were performed using an acidic solution with a bare gold microelectrode in the presence of chloride ions. GSRs from four different guns (0.38 in. revolver, 12 caliber ...
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Impacto da exposição ao chumbo (Pb) sobre o perfil de expressão de genes relacionados ao metabolismo do metal em indivíduos ocupacionalmente expostos
(Universidade Federal de São Paulo, 2022-01-18)O chumbo (Pb) é um metal versátil utilizado por humanos há mais de 9.000 anos e, sua exposição poderá influenciar no processo de regulação da expressão gênica o qual é composta por diversos eventos complexos, caracterizando-os ...
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Lead detection using micro/nanocrystalline boron-doped diamond by square-wave anodic stripping voltammetry
(Elsevier B.V., 2014-10-01)Monitoring heavy metal ion levels in water is essential for human health and safety. Electroanalytical techniques have presented important features to detect toxic trace heavy metals in the environment due to their high ...
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Milk and Dairy Products Intake Is Associated with Low Levels of Lead (Pb) in Workers highly Exposed to the Metal
(Humana Press Inc, 2017)Lead (Pb) is a toxic metal, frequently associated with occupational exposure, due to its widespread use in industry and several studies have shown high Pb levels in workers occupationally exposed to the metal. The aim of ...
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Voltammetric studies of the interaction between lead metal ion and the methyl parathion pesticide
(Springer, 2018)In this work, the interaction of the pesticide methyl parathion (MP) with the lead metal ion was evaluated using a carbon electrode reused from a zinc battery. MP showed a reduction peak around - 0.57 V, with characteristics ...