Fabrication and electrochemical study of [Ru(NH3)6]3+/Nafion modified electrodes for the determination of trace amounts of Pb2+, Cd2+, and Zn2+ via anodic stripping voltammetry
Fabrication and electrochemical study of [Ru(NH3)6]3+/Nafion modified electrodes for the determination of trace amounts of Pb2+, Cd2+, and Zn2+ via anodic stripping voltammetry
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DOI：
10.1515/epoly-2015-0210
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发表时间：
2016-03
期刊：
影响因子：
3.7
通讯作者：
S. Palisoc;M. Natividad;N. C. Martinez;Rochelle Marie A. Ramos;K. Kaw
中科院分区：
文献类型：
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作者：
S. Palisoc;M. Natividad;N. C. Martinez;Rochelle Marie A. Ramos;K. Kaw
摘要采用滴涂技术制备了[Ru(NH3)6]3+/Nafion修饰的氧化铟锡（ITO）电极，并采用阳极溶出伏安法（ASV）同时测定了微量铅（Pb2+）、镉（Cd2+）和锌（Zn2+）。涂布液中[Ru(NH3)6]3+的用量分别为5 mg、10 mg和15 mg。制备的电极用于检测不同浓度的铅、镉和锌。ASV结果表明，随着[Ru(NH3)6]3+用量的增加，重金属的还原电流也随之增大。Pb和Cd的Pearson相关值接近1.0，表明变量之间存在较强的正线性关系。制造的电极可以同时检测的最小重金属浓度为0.5 ppm。
Abstract [Ru(NH3)6]3+/Nafion modified indium tin oxide (ITO) electrodes were fabricated via the drop coating technique and were used for the simultaneous determination of lead (Pb2+), cadmium (Cd2+), and zinc (Zn2+) in trace amounts using anodic stripping voltammetry (ASV). The amount of [Ru(NH3)6]3+ in the coating solution was varied at 5 mg, 10 mg, and 15 mg. The fabricated electrodes were used to detect varying concentrations of Pb, Cd and Zn. ASV results showed that as the amount of [Ru(NH3)6]3+ was increased, the reduction current of the heavy metals increased as well. The Pearson correlation values obtained for Pb and Cd were close to 1.0, indicating a strong positive linear relationship between the variables. The minimum heavy metal concentration that can be simultaneously detected by the fabricated electrodes is 0.5 ppm.