Graphene–polyaniline composite film modified electrode for voltammetric determination of 4-aminophenol

✍ Scribed by Yang Fan; Jin-Hang Liu; Chun-Peng Yang; Meng Yu; Peng Liu

• Book ID: 104092952
• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 644 KB
• Volume: 157
• Category: Article
• ISSN: 0925-4005
• DOI: 10.1016/j.snb.2011.05.053

✦ Synopsis

An electrochemical sensor based on graphene-polyaniline (GR-PANI) nanocomposite for voltammetric determination of 4-aminophenol (4-AP) is presented. The electrochemical behavior of 4-AP at the GR-PANI composite film modified glassy carbon electrode (GCE) was investigated by cyclic voltammetry. 4-AP exhibits enhanced voltammetric response at GR-PANI modified GCE. This electrochemical sensor shows a favorable analytical performance for 4-AP detection with a detection limit of 6.5 × 10 -8 M and high sensitivity of 604.2 A mM -1 . Moreover, 4-AP and paracetamol can be detected simultaneously without interference of each other in a large dynamic range.