The design and performance of an easily constructed cell for microscale spectroelectrochemical analysis is described. A cation exchange polymer film, Nafion, was used as a salt bridge to provide ionic contact between a small sample well containing a coiled wire working electrode and separate, larger wells housing reference and auxiliary electrodes. The cell was evaluated using aqueous ferri/ferrocyanide as a test system and shown to be capable of relatively sensitive visible absorption measurements (path lengths on the order of millimeters) and reasonably rapid bulk electrolysis (~ 5 min) of samples in the 1 to 5 μL volume range. Minor alterations to the cell design are cited that could allow for analysis of sub-microliter volumes, rapid multi-sample analysis, and measurements in the ultraviolet spectral region.

中文翻译：

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易于构建的微型光谱电化学电池。

描述了用于微尺度光谱电化学分析的易于构建的单元的设计和性能。阳离子交换聚合物薄膜 Nafion 用作盐桥，以提供包含盘绕线工作电极的小样品孔与容纳参考电极和辅助电极的独立较大孔之间的离子接触。该电池使用铁/亚铁氰化物水溶液作为测试系统进行评估，并显示能够进行相对敏感的可见光吸收测量（毫米数量级的路径长度）和 1 至 5 μL 体积范围。引用了对单元设计的微小改动，可以允许分析亚微升体积、快速多样本分析和紫外光谱区域的测量。