Simultaneous determination of trace levels of lead(II) and copper(II) by square wave stripping voltammetry using a glassy carbon electrode modified with hierarchical gold dendrites

被引：13

作者：

Fei, Yao ^{[1
]}

Lv, Zhang-Ying ^{[1
]}

Wang, Ai-Jun ^{[1
]}

Chen, Ye-Hong ^{[1
]}

Chen, Jian-Rong ^{[1
]}

Feng, Jiu-Ju ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Coll Chem & Life Sci, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China

来源：

MICROCHIMICA ACTA | 2014年 / 181卷 / 3-4期

关键词：

Au hierarchical dendrites; Square wave stripping voltammetry; Lead ion; Copper ion; AQUEOUS-SOLUTION; CU2+; PB2+; FILM; NANOSTRUCTURES; SENSOR; IONS; CD2+;

D O I：

10.1007/s00604-013-1116-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A glassy carbon electrode was modified with gold hierarchical dendrites (Au HDs) by one-step electrodeposition in the presence of cytosine, which plays an important role in the formation of the Au HDs. This approach is simple, fast, feasible, controllable, without any seed, template, or surfactant. The modified electrodes were used for the simultaneous determination of Pb2+ and Cu2+ by square wave stripping voltammetry. The peak currents show good linear relationship with concentrations of Pb2+ and Cu2+ in the range of 5.0 to 15.0 mu M. The recoveries of the spiked water samples are in the range of 94.0 %-107.4 % for Pb2+ and Cu2+, and their relative standard deviation are in the range of 2.7 %-4.3 % for Pb2+ and Cu2+, respectively (n = 3).

引用

页码：389 / 394

页数：6

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