CV Lattes
Universidade de São Paulo (USP). Centro de Energia Nuclear na Agricultura (CENA) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Agronomical Engineer from the University of São Paulo (1971), Master in Nuclear Energy in Agriculture from the University of São Paulo (1974) and PhD in Analytical Chemistry from the State University of Campinas (1981). He is currently a full professor at the Center for Nuclear Energy in Agriculture at the University of São Paulo and a full member of the Brazilian Academy of Sciences. His research activities mainly include the design and development of flow-based analytical systems, with applications in the agronomical, environmental, pharmaceutical and industrial areas, especially in relation to UV-Vis spectrophotometry, flow analysis, and chemometrics. Emphasis has been placed on valuing ethical, moral and spiritual aspects, in order to develop feelings of team spirit, intellectual freedom, creativity and, above all, friendship, among its students and collaborators.e-mail: ezagatto@cena.usp.br (Source: Lattes Curriculum)
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The aim is to develop advanced flow systems for chemical analysis exploiting pulsed flows, novel strategies for micro-liquid-liquid extraction, solid-liquid and liquid-gas, micro-digestion, novel alternatives for the immobilization of reagents and solvents, more efficient exploitation of slow reactions and the construction of miniaturized instruments. The reduced consumption of reagents a…
Novel analytical strategies involving bio-molecules, such as e.g. enzymes, metalloenzymes and metalloproteins will be implemented, with emphasis to use of biomarkers for evaluating tolerance to oxidative stress. Analytical procedures will be developed for the determination of anti-oxidants, markers of oxidative damage, metals and proteins; novel non-destructive methodologies for fast in-s…
The feasibility of exploiting different reaction media and/or novel materials will be investigated in order to developed analytical procedures with enhancement characteristics of sensitivity and selectivity for the analysis of biological and environmental samples such as pharmaceuticals, natural waters, foodstuffs, agro-industrial residues and biological fluids. Atomic absorption spectrom…
(Only some records are available in English at this moment)
In-line liquid-liquid or solid phase extractions have been often exploited, as demonstrated by the increasing number of proposals of different strategies for analyte separation and/or concentration in diverse matrices. These strategies can be influenced by variations in temperature and pressure, but influence of these parameters in the extractive processes carried out in flow systems has …
Analytical flow systems exploiting advanced oxidation processes (AOP) will be designed for in-line sample preparation. The in situ radical generation will be accomplished through the activation of classical oxidants (potassium peroxymonosulfate and potassium persulfate) with transition metals (Co, Ag and Mn). AOP's may or may not involve UV irradiation, depending on the performance evalua…
Recent work has demonstrated the advantages of exploiting pulsed rather than laminar flows for flow-based chemical analyses. This has not been investigated in relation to procedures involving immobilization of chemical species in liquid membranes or in the walls of open tubular reactors. It is intended therefore a comparative study of flow systems exploiting laminar or pulsed flows in rel…
(Only some records are available in English at this moment)
Analytical procedures relying on slow chemical reactions will be implemented as in-line post-column detection of dynamic column-based bioaccessibility tests using multi-syringe flow injection or sequential injection systems. For improving sensitivity and/or selectivity and lessening the reagent consumption, thus waste generation, different approaches such as zone merging, zone trapping, …
| 12 / 9 | Completed research grants |
| 25 / 7 | Completed scholarships in Brazil |
| 1 / 1 | Completed scholarships abroad |
| 38 / 17 | All research grants and scholarships |
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