title: Polymer/carbon nanotubes coated graphite surfaces for highly sensitive nitrite detection.
abstract: This study describes the preparation of poly(vinylferrocenium)/multi-walled carbon nanotubes (PVF(+)/MWCNTs) coated electrode and its use for sensitive electrochemical nitrite detection. PVF(+)/MWCNTs composite coated disposable pencil graphite electrode (PVF(+)/MWCNTs/PGE) was prepared by electropolymerization of poly(vinylferrocene) (PVF) in the presence of MWCNTs with one-step electropolymerization. Characterization of PVF(+)/MWCNTs/PGE was carried out with scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Then electrochemical detection of nitrite was performed using differential pulse voltammetry (DPV). Nanocomposite coated electrode showed high sensitivity to nitrite with a detection limit of 0.1 μM. The electrode platform was successfully applied to a commercial mineral water sample.
authors.affiliation: Ordu University, Faculty of Arts and Sciences, Department of Chemistry, 52200 Ordu, Turkey. Electronic address: kuralay.filiz@gmail.com.
authors.forename: Filiz
authors.initials: F
authors.lastname: Kuralay
authors.affiliation: Ordu University, Faculty of Arts and Sciences, Department of Chemistry, 52200 Ordu, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Dumangöz
authors.affiliation: Ordu University, Faculty of Arts and Sciences, Department of Chemistry, 52200 Ordu, Turkey.
authors.forename: Selma
authors.initials: S
authors.lastname: Tunç
keywords: Multi-walled carbon nanotubes; Nitrite; Poly(vinylferrocenium); Redox polymer