Development of an Automatic Electrochemical System for Differential Pulse Amperometry and Its Application for Se(IV) Determination

This work presents the development of an automatic system for differential pulse amperometry (DPA) with electrochemical deposition. The system consists of a microcomputer, running a home‐made software, connected to a commercial potentiostat through a data acquisition board. The system was applied fo...

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Published in:Electroanalysis (New York, N.Y.) N.Y.), 2005-11, Vol.17 (22), p.2084-2089
Main Authors: Gonzaga, Fabiano Barbieri, Pereira, Claudete Fernandes, Guaritá-Santos, Antonio José Moraes, Souza De, Jurandir Rodrigues
Format: Article
Language:English
Subjects:
Data acquisition
Differential pulse amperometry
Gold electrode
Instrumentation
Selenium determination
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creator Gonzaga, Fabiano Barbieri
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description This work presents the development of an automatic system for differential pulse amperometry (DPA) with electrochemical deposition. The system consists of a microcomputer, running a home‐made software, connected to a commercial potentiostat through a data acquisition board. The system was applied for selenium determination using gold electrode and flow injection analysis (FIA). Analytical curves were obtained in the concentration range of 20 to 400 μg L−1 for Se(IV), with a calculated detection limit of 6 μg L−1. The analysis results for fish samples doped with Se(IV) and digested in a microwave oven showed recoveries above 93%.
doi_str_mv 10.1002/elan.200503338
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subjects Data acquisition
Differential pulse amperometry
Gold electrode
Instrumentation
Selenium determination
title Development of an Automatic Electrochemical System for Differential Pulse Amperometry and Its Application for Se(IV) Determination
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