Sensitive Stripping Determination of Cadmium(II) and Lead(II) on Disposable Graphene Modified Screen‐Printed Electrode. Issue 9 (27th August 2013)

• Record Type: Journal Article
• Authors: Huangfu, Chao; Fu, Liang; Li, Yuzhi; Li, Xueling; Du, Haijun; Ye, Jianshan
• Is Part Of: Electroanalysis. Volume 25:Issue 9(2013:Sep.)
• Page Start: 2238
• Page End: 2243
• Publication Date: 2013-08-27
• Subjects: Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.201300239
• Languages: English
• ISSNs: 1040-0397

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>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 Cd²⁺ and 0.089 µg L⁻¹ for Pb²⁺ with linear responses of Cd²⁺ and Pb²⁺ in the range of 0.5–120 µg L⁻¹. Finally, the practical application was confirmed in real water with satisfactory results.</p> </abstract>