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首页> 外文期刊>International Journal of Electrochemical Science >Electrochemical Characteristic of Biotinyl Somatostatin-14/Nafion Modified Gold Electrode in Development of Sensor for Determination of Hg(II)
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Electrochemical Characteristic of Biotinyl Somatostatin-14/Nafion Modified Gold Electrode in Development of Sensor for Determination of Hg(II)

机译：生物素生长抑素-14 / Nafion修饰金电极在测定汞（II）传感器中的电化学特性

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摘要

Electrochemical sensor for Hg(II) has been developed using Biotinyl Somatostatin-14 peptidemodified gold electrode utilizing nafion as the immobilizing agent. Experimental conditions such aspH, supporting electrolyte and scan rate were optimized. Detection of mercury using BiotinylSomatostatin-14 peptide/Nafion has been observed to be optimum under acidic conditions. Goodrelative standard deviation of 3.7% has been obtained indicating reliability of the detection system. A-1 -10 linear calibration plot in the range of 40-170 gL was obtained with sensitivity value of 110-1 -1AM . Limit of detection (LOD) obtained is 0.4 gL which is below the WHO guidelines fordrinking water. The scan rate study showed that the process is a complex surface process, mostlyinvolving an adsorption process. This developed method was applied for determination of Hg(II) inactual waste water samples and a good agreement was obtained between the proposed method andICP-MS based on the analysis of the waste water samples.
机译：Hf（II）的电化学传感器是利用生物素生长抑素14肽修饰的金电极，利用nafion作为固定剂开发的。优化了pH，支持电解质和扫描速率等实验条件。已观察到在酸性条件下使用BiotinylSomatostatin-14肽/ Nafion检测汞是最佳方法。已获得3.7％的良好相对标准偏差，表明检测系统的可靠性。获得了A-1 -10线性校准图，其范围为40-170 gL，灵敏度值为110-1 -1AM。获得的检出限（LOD）为0.4 gL，低于WHO的饮用水准则。扫描速率研究表明，该过程是一个复杂的表面过程，主要涉及吸附过程。该方法用于实际废水中Hg（II）的测定，在分析废水样品的基础上，该方法与ICP-MS方法具有很好的一致性。

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