Copper-based electrochemical sensor with palladium electrode for cathodic stripping voltammetry of manganese.
Copper-based electrochemical sensor with palladium electrode for cathodic stripping voltammetry of manganese.
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DOI：
10.1021/ac502882s
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发表时间：
2014-12-16
影响因子：
7.4
通讯作者：
Papautsky, Ian
中科院分区：
文献类型：
--
作者：
Kang, Wenjing;Pei, Xing;Bange, Adam;Haynes, Erin N.;Heineman, William R.;Papautsky, Ian
在这项工作中，我们报告了一个钯为基础的，微型点的护理电化学传感器的发展，用于测定锰的方波阴极溶出伏安法。重金属需要仔细监测，但目前的方法对于护理点系统来说过于复杂。伏安法提供了一种有吸引力的方法来在微尺度上检测金属，但传统的碳，金或铂电极难以或昂贵的微制造，阻止广泛使用。我们的传感器使用钯工作电极和辅助电极，并将其与铜基参比电极集成，制造简单，与微加工和印刷电路板加工兼容，同时保持电化学检测的竞争性能。在玻璃衬底上制备铜电极，使用微加工程序的组合，然后电沉积钯。一次性传感器系统通过将聚二甲基硅氧烷（PDMS）良好地结合到玻璃基板上而形成。阴极溶出伏安法锰使用我们的新的一次性钯基传感器表现出334 nM（18.3 ppb）的检测限硼酸盐缓冲液。该传感器被用来证明锰测定天然水样中的伯内特伍兹，位于辛辛那提，俄亥俄州，和俄亥俄州河的池塘。
In this work, we report on the development of a palladium-based, microfabricated point-of-care electrochemical sensor for the determination of manganese using square wave cathodic stripping voltammetry. Heavy metals require careful monitoring, yet current methods are too complex for a point-of-care system. Voltammetry offers an attractive approach to metal detection on the microscale, but traditional carbon, gold, or platinum electrodes are difficult or expensive to microfabricate, preventing widespread use. Our sensor uses palladium working and auxiliary electrodes and integrates them with a copper-based reference electrode for simple fabrication and compatibility with microfabrication and printed circuit board processing, while maintaining competitive performance in electrochemical detection. Copper electrodes were prepared on glass substrate using a combination of microfabrication procedures followed by electrodeposition of palladium. The disposable sensor system was formed by bonding a poly(dimethylsiloxane) (PDMS) well to the glass substrate. Cathodic stripping voltammetry of manganese using our new disposable palladium-based sensors exhibited 334 nM (18.3 ppb) limit of detection in borate buffer. The sensor was used to demonstrate manganese determination in natural water samples from a pond in Burnet Woods, located in Cincinnati, OH, and the Ohio River.
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影响因子：
6.2
作者：
Matsumoto, T;Ohashi, A;Ito, N
通讯作者：
Ito, N
影响因子：
2.9
作者：
Hue, NV;Vega, S;Silva, JA
通讯作者：
Silva, JA
影响因子：
6.1
作者：
Di, JW;Zhang, F
通讯作者：
Zhang, F
影响因子：
2.8
作者：
Jothimuthu, Preetha;Wilson, Robert A.;Herren, Josi;Haynes, Erin N.;Heineman, William R.;Papautsky, Ian
通讯作者：
Papautsky, Ian
影响因子：
3
作者：
Kang, Wenjing;Pei, Xing;Yue, Wei;Bange, Adam;Heineman, William R.;Papautsky, Ian
通讯作者：
Papautsky, Ian