Improved sensitive detection of Pb2+ and Cd2+ in water samples at electrodeposited silver nanonuts on a glassy carbon electrode

被引：16
|
作者：
Prakash, S. [1 ]
Shahi, Vinod K. [1 ]
机构：
[1] CSIR, Electromembrane Proc Div, Cent Salt & Marine Chem Res Inst, Bhavnagar 364002, Gujarat, India
来源：
ANALYTICAL METHODS | 2011年 / 3卷 / 09期
关键词：
ANODIC-STRIPPING VOLTAMMETRY; BISMUTH FILM ELECTRODE; HEAVY-METAL IONS; UNDERPOTENTIAL DEPOSITION; TRACE-METALS; HYDROGEN-PEROXIDE; PASTE ELECTRODE; LEAD; CADMIUM; NANOPARTICLES;
D O I：
10.1039/c1ay05265a
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Silver nanonuts (AgNns) with controlled size were electrodeposited on a glassy carbon electrode (GCE) surface using a double pulse potentiostatic technique for simultaneous detection of Pb2+ and Cd2+ in water samples without removal of oxygen, surfactant and other metal ions. The AgNns decorated GCE electrode showed improved sensitivity and reproducibility in comparison with previously reported electrodes. The detection limits were 0.15 ppb and 0.10 ppb for Pb2+ and Cd2+, respectively. Finally, the practical application of the proposed method was verified in waste water samples taken from the Alang ship breaking yard located in Gujarat (India).
引用
收藏
页码：2134 / 2139
页数：6
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