用于检测铅离子的电化学传感器

International Conference on Advanced Nanomaterials & Emerging Engineering Technologies Pub Date : 2013-07-24 DOI:10.1109/ICANMEET.2013.6609321

I. V. Anambiga, V. Suganthan, N. Raj, A. S. Kumar

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引用次数: 10

摘要

开发用于检测和定量样品中重金属离子的实用传感器是大量研究的课题。提出了一种谷胱甘肽稳定银纳米颗粒(GSH-AgNPs)修饰的丝网印刷电极，利用循环伏安法测定痕量铅(II)。在0.263 V的电位范围内获得最大电流。静电氧化还原峰电流对Pb(II)浓度呈线性响应，并得到了线性校准曲线。检测限为4.963×10-8 M，灵敏度响应为10-5 mV，扫描速率为100 mV/s。

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Electrochemical sensor for the detection of lead ions

The development of practical sensors for the detection and quantification of heavy metals ions in the samples is the subject of considerable research. A glutathione stabilized silver nanoparticles (GSH-AgNPs) modified screen printed electrode was proposed to determine the trace levels of Pb(II) by using cyclic voltammetry. Maximum current was obtained at the potential range of 0.263 V. The electrostatic redox peak current shows a linear response towards the concentration of Pb(II) and linear calibration curves were obtained. The limit of detection was determined as 4.963×10-8 M and the sensitivity response is 10-5 mV with a scanning rate of 100 mV/s.

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International Conference on Advanced Nanomaterials & Emerging Engineering Technologies

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