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Development of an automatic electrochemical system for differential pulse amperometry and its application for Se(IV) determination

机译:差分脉冲安培法自动电化学系统的开发及其在Se(IV)测定中的应用

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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. ne 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 mu g L-1 for Se(IV), with a calculated detection limit of 6 mu g L-1. The analysis results for fish samples doped with Se(IV) and digested in a microwave oven showed recoveries above 93%.
机译:这项工作提出了带有电化学沉积的差分脉冲安培法(DPA)自动系统的开发。该系统由一台运行家用软件的微型计算机组成,该微型计算机通过数据采集板连接到商用恒电位仪。使用金电极和流动注射分析(FIA)将ne系统应用于硒的测​​定。 Se(IV)的浓度范围为20至400μg L-1,获得的分析曲线为计算得出的检测极限为6μgL-1。掺杂有Se(IV)并在微波炉中消化的鱼样品的分析结果表明,回收率在93%以上。

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