Selective detection method derived from a controlled diffusion process at metal-modified diamond electrodes.
Selective detection method derived from a controlled diffusion process at metal-modified diamond electrodes.
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DOI：
10.1021/ac060860j
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发表时间：
2006-10
影响因子：
7.4
通讯作者：
Takeshi Watanabe;T. Ivandini;Y. Makide;A. Fujishima;Y. Einaga
中科院分区：
文献类型：
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作者：
Takeshi Watanabe;T. Ivandini;Y. Makide;A. Fujishima;Y. Einaga
基于微电极处的扩散过程之间的差异（即，半球形扩散）和宏电极（即，线性扩散）。作为一个例子，在含有干扰物种，如抗坏血酸和尿酸的溶液中的葡萄糖的选择性检测证明。BDD的电化学性质，即低背景电流，极高的稳定性，和（特别是）对葡萄糖的不活性，在实现这些差异中的扩散特性中起着重要的作用。本方法不仅可以应用于通过金属-BDD系统的选择性葡萄糖检测，而且可以应用于其他选择性检测系统。
A novel, selective methodology is derived based on the difference between the diffusion processes at microelectrodes (i.e., hemispherical diffusion) and the macroelectrode (i.e., linear diffusion) in a metal-implanted boron-doped diamond electrode (metal-BDDs). As an example, the selective detection of glucose in a solution containing interference species such as ascorbic acid and uric acid is demonstrated. The electrochemical properties of BDD, which are low background current, extremely high stability, and (especially) inactivity toward glucose, play an important role in realizing these differences in the diffusion characteristics. The present methodology can be applied not only to selective glucose detection by the metal-BDD system but also to other selective detection systems.