Angnes L, Richter EM, Augelli MA, Kume GH
Departmento de Quimica Fundamental, Universidade de Sao Paulo, Brazil.
Anal Chem. 2000 Nov 1;72(21):5503-6. doi: 10.1021/ac000437p.
Gold electrodes are widely used in electrochemistry and electroanalytical chemistry. The notable performance when used in stripping analysis of many ionic species and the extraordinary affinity of thio compounds for its surface make these electrodes very suitable for many applications. This paper reports a simple and novel way to construct gold electrodes (CDtrodes) using recordable CDs as the gold source. The nanometer thickness of the gold layer of recordable disks (50-100 nm) favors the construction of band nanoelectrodes with areas as small as 10(-6) cm2. The plane surface can be easily used for the construction of conventional-sized gold electrodes for batch or flow injection analysis or even to obtain electrodes as large as 100 cm2. The low price of commercial recordable CDs allows a "one way use". The evaluation and applicability of these electrodes in the form of nanoelectrodes, in batch and associated with flow cells, are illustrated in this paper.
金电极在电化学和电分析化学中被广泛使用。在许多离子物种的溶出分析中表现出色，以及硫代化合物对其表面具有非凡的亲和力，使得这些电极非常适合许多应用。本文报道了一种简单而新颖的方法，使用可记录光盘作为金源来构建金电极（CD电极）。可记录磁盘金层的纳米厚度（50 - 100纳米）有利于构建面积小至10(-6)平方厘米的带状纳米电极。其平面表面可轻松用于构建用于批量或流动注射分析的常规尺寸金电极，甚至可获得面积达100平方厘米的电极。商业可记录光盘价格低廉，可“一次性使用”。本文阐述了这些电极作为纳米电极、批量形式以及与流通池相关联时的评估和适用性。
