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Development and application of a portable microprocessed potentiostat/galvanostat for monitoring in situ and on-line of metal ions in environmental samples


The construction of a potentiostat/galvanostat for monitoring in situ and on-line of metal ions in water samples employing printed electrodes as electrochemical sensors is proposed in this project. The equipment will be microprocessed which increases its self-sufficiency, it does not require a microcomputer and can be operated on battery module. Besides these features, the proposed equipment will provide devices that allow communication by ethernet for remote transmission of data from field and drivers to obtain the geographic location of the water sample using GPS technology (Global Positioning System). Software dedicated exclusively for this purpose will also be developed as well as printed electrodes used as electrochemical sensors. Calibrations, testing of accuracy, precision and reliability of built equipment will be done in order to certify the reliability and performance of the equipment. We believed that the proposed electrochemical analysis of metal ions in environmental waters in situ and on-line employing a microprocessed potentiostat/galvanostat with memory card, ethernet and tracking by GPS is a good alternative to conventional methods of water analyses. Those methods normally used are laborious and demand a relatively long time to carry out. The proposed equipment has a very innovative potential, with good market prospects and certainly its development will contribute to the intellectual and technical growth of all participants. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DOS SANTOS, VAGNER BEZERRA; FAVA, ELSON LUIZ; DE MIRANDA CURI, NEWTON SA; FARIA, RONALDO CENSI; GUERREIRO, THIAGO BRITO; FATIBELLO-FILHO, ORLANDO. An electrochemical analyzer for in situ flow determination of Pb(II) and Cd(II) in lake water with on-line data transmission and a global positioning system. ANALYTICAL METHODS, v. 7, n. 7, p. 3105-3112, 2015. Web of Science Citations: 7.
DOS SANTOS, VAGNER BEZERRA; FAVA, ELSON LUIZ; PESSOA-NETO, OSMUNDO DANTAS; BIANCHI, SILMARA ROSSANA; FARIA, RONALDO CENSI; FATIBELLO-FILHO, ORLANDO. A versatile and robust electrochemical flow cell with a boron-doped diamond electrode for simultaneous determination of Zn2+ and Pb2+ ions in water samples. ANALYTICAL METHODS, v. 6, n. 21, p. 8526-8534, NOV 7 2014. Web of Science Citations: 12.
DOS SANTOS, VAGNER B.; FAVA, ELSON L.; DE MIRANDA CURI, NEWTON S.; FARIA, RONALDO C.; FATIBELLO-FILHO, ORLANDO. A thermostated electrochemical flow cell with a coupled bismuth film electrode for square-wave anodic stripping voltammetric determination of cadmium(II) and lead(II) in natural, wastewater and tap water samples. Talanta, v. 126, p. 82-90, AUG 1 2014. Web of Science Citations: 21.

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