ABTS‐Multiwalled Carbon Nanotubes Nanocomposite/Bi Film Electrode for Sensitive Determination of Cd and Pb by Differential Pulse Stripping Voltammetry | Zendy

Deng Wenfang | Zendy; Tan Yueming | Zendy; Fang Zhengfa | Zendy; Xie Qingji | Zendy; Li Yunyong | Zendy; Liang Xiaoling | Zendy; Yao Shouzhuo | Zendy

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ABTS‐Multiwalled Carbon Nanotubes Nanocomposite/Bi Film Electrode for Sensitive Determination of Cd and Pb by Differential Pulse Stripping Voltammetry

Author(s) -

Deng Wenfang,

Tan Yueming,

Fang Zhengfa,

Xie Qingji,

Li Yunyong,

Liang Xiaoling,

Yao Shouzhuo

Publication year - 2009

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.200900207

Subject(s) - stripping (fiber) , electrode , nanocomposite , differential pulse voltammetry , anodic stripping voltammetry , analytical chemistry (journal) , potentiostat , materials science , detection limit , carbon nanotube , glassy carbon , voltammetry , nuclear chemistry , chemistry , cyclic voltammetry , electrochemistry , chromatography , nanotechnology , composite material

A 2,2′‐azinobis (3‐ethylbenzothiazoline‐6‐sulfonate) diammonium salt (ABTS)‐multiwalled carbon nanotubes (MWCNTs) nanocomposite/Bi film modified glassy carbon (GC) electrode was constructed for the differential pulse stripping voltammetric determination of trace Pb 2+ and Cd 2+ . This electrode was more sensitive than ABTS‐free Bi/GC and Bi/MWCNTs/GC electrodes. Linear responses were obtained in the range from 0.5 to 35 μg L −1 for Cd 2+ and 0.2 to 50 μg L −1 Pb(II), with detection limits of 0.2 μg L −1 for Cd 2+ and 0.1 μg L −1 for Pb 2+ , respectively. This sensor was applied to the simultaneous detection of Cd 2+ and Pb 2+ in water samples with satisfactory recovery.

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