Biogeochemical cycles of cadmium and zinc in two estuarine systems of the State of São Paulo: emphasis on the determination of the phases of dissolved metals by voltammetry of redissolução anodic (stripping)

• Grant number: 08/02384-2
• Support Opportunities: Scholarships in Brazil - Master
• Start date: August 01, 2008
• End date: March 31, 2010
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Mauro Bertotti
• Grantee: Ana Paula Ruas de Souza
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The human activities have affected biogeochemical cycles of many substances in the environment. The analyses of air, water and soil indicate that the contamination and accumulation of toxic metals are increasing continuously. Therefore, the study of heavy metals in its various compartments in the water system requires the use of sensitive analytical techniques. The techniques eletroanalíticas has emerged as an alternative for spectroscopic techniques, for present some advantages, such as the reach of low limits of detection, simultaneous analysis of different cations, high speed analysis, cost analysis, among others. Thus, this project seeks to assess the possibility of electrodeposition of bismuth for subsequent employment of electroanalytical electrodes manufactured in determinations of metal ions by stripping. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SOUZA, Ana Paula Ruas de. Determination of cadmium and zinc ions in the Lagoon - Estuarine System Cananéia - Iguape by anodic stripping voltammetry. 2010. Master's Dissertation - Universidade de São Paulo (USP). Conjunto das Químicas (IQ e FCF) (CQ/DBDCQ) São Paulo.