A new strategy for eliminating interference from EC′ mechanism during analytical measurements based on plane-band-recessed microdisk array electrodes
A new strategy for eliminating interference from EC′ mechanism during analytical measurements based on plane-band-recessed microdisk array electrodes
复制标题
基于平面带凹式微盘阵列电极的分析测量过程中消除 ECâ 机制干扰的新策略
DOI：
10.1016/j.elecom.2013.10.029
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发表时间：
2014
影响因子：
5.4
通讯作者：
Christian Amatore
中科院分区：
文献类型：
--
作者：
Pang Shiwei;Yan Jiawei;Zhu Feng;He Dingwen;Mao Bingwei;Alex;er Oleinick;Irina Svir;Christian Amatore
本文介绍了一种新型的三电极发生-集电极传感器，用于选择性地检测任何化学变异系数为可逆的目标分析物，而存在任何化学变异系数为不可逆的干扰物。该装置由一层金属材料(在本作品中为Au)由一列圆柱形小孔戳出，其中在其中间放置环带电极(在本作品中为Au)，在其底部(在本作品中为Au)放置圆盘电极。当顶部平面和环带电极稳定在位于分析物和干扰波上的电位时，操作凹陷的盘电极阵列以监测稳定的分析物电离的产物，允许完全抑制由干扰物的直接或间接(EC‘)参与而对分析物浓度测量的任何污染。基于在PBS电解液中存在抗坏血酸的情况下对多巴胺的检测，成功地证明了这种装置的有效性。
A new type of three-electrode generator–collector sensor is described for the selective detection of any target analyte whose CV is chemically reversible in the presence of any interferent whose CV is chemically irreversible. The device consists of a layer of metallic material (Au in this work) poked by an array of cylindrical pores containing a ring-band electrode (Au in this work) placed in their middle and a disk electrode at their bottom (Au in this work). Operating the array of recessed disk electrodes to monitor the product of the stable analyte electronation while the top plane and the ring-band electrodes are poised at a potential located on the analyte and on the interferent waves allows suppressing entirely any contamination of the analyte concentration measurement by direct or indirect (EC′) involvement of the interferent. The efficiency of such devices was successfully demonstrated based on the detection of dopamine in the presence of ascorbic acid in PBS electrolyte.