Sensitive Stripping Determination of Cadmium(II) and Lead(II) on Disposable Graphene Modified Screen‐Printed Electrode | Zendy

Huangfu Chao | Zendy; Fu Liang | Zendy; Li Yuzhi | Zendy; Li Xueling | Zendy; Du Haijun | Zendy; Ye Jianshan | Zendy

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Sensitive Stripping Determination of Cadmium(II) and Lead(II) on Disposable Graphene Modified Screen‐Printed Electrode

Author(s) -

Huangfu Chao,

Fu Liang,

Li Yuzhi,

Li Xueling,

Du Haijun,

Ye Jianshan

Publication year - 2013

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.201300239

Subject(s) - graphene , detection limit , stripping (fiber) , electrode , cadmium , materials science , metal ions in aqueous solution , linear range , metal , analytical chemistry (journal) , chemistry , nanotechnology , chromatography , composite material , metallurgy

In the present work, a sensitive, facile and disposable sensing platform for trace analysis of heavy metal ions was developed at the Bi modified graphene‐poly(sodium 4‐styrenesulfonate) composite film screen printed electrode (GR/PSS/Bi/SPE). The GR/PSS/Bi/SPE improved sensitivity and linearity due to the functionalization of graphene with negatively charged PSS providing more absorbing sites. The detection limit of the GR/PSS/Bi/SPE is found to be 0.042 µg L −1 for Cd 2+ and 0.089 µg L −1 for Pb 2+ with linear responses of Cd 2+ and Pb 2+ in the range of 0.5–120 µg L −1 . Finally, the practical application was confirmed in real water with satisfactory results.

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