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首页> 外文期刊>Electroanalysis >Lab-on-a-Chip Sensor with Evaporated Bismuth Film Electrode for Anodic Stripping Voltammetry of Zinc
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Lab-on-a-Chip Sensor with Evaporated Bismuth Film Electrode for Anodic Stripping Voltammetry of Zinc

机译：具有蒸发铋膜电极的芯片实验室传感器用于锌的阳极溶出伏安法

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摘要

In this work, we report on the development of a lab-on-a-chip electrochemical sensor that uses an evaporated bismuth electrode to detect zinc using square wave anodic stripping voltammetry. The microscale electrochemical cell consists of a bismuth working electrode, an integrated silver/silver chloride reference electrode, and a gold auxiliary electrode. The sensor exhibits a linear response in 0.1 M acetate buffer at pH 6 with zinc concentrations in the 1-30 μM range and a calculated detection limit of 60 nM. The sensor successfully detected zinc in a bovine serum extract and the results were corfirmed by independent AAS measurements. Our results demonstrate the advantageous qualities of this lab-on-a-chip electrochemical sensor for clinical applications, which include small sample volume (mL scale), reduced cost, short response time and high accuracy at low concentrations of analyte.
机译：在这项工作中，我们报告了一个芯片实验室电化学传感器的发展，该传感器使用蒸发的铋电极通过方波阳极溶出伏安法检测锌。微型电化学电池由铋工作电极，集成的银/氯化银参比电极和金辅助电极组成。该传感器在pH值为6的0.1 M乙酸盐缓冲液中表现出线性响应，锌浓度为1-30μM，计算出的检测限为60 nM。该传感器成功检测出牛血清提取物中的锌，并通过独立的AAS测量确认了结果。我们的结果证明了这种片上实验室电化学传感器在临床应用中的有利品质，包括小样品量（mL刻度），降低的成本，较短的响应时间以及在低浓度分析物时的高精度。

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