Premium
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.