title: Gold nanoparticles/polyaniline Langmuir-Blodgett Film modified glassy carbon electrode as voltammetric sensor for detection of epinephrine and uric acid.
abstract: Gold nanoparticles/polyaniline nanocomposite thin film was deposited onto the surface of glassy carbon electrode(GCE) by Langmuir-Blodgett(LB) technology to fabricate a new voltammetric sensor (GNPs/PAn-LB GCE) for epinephrine(EP) and uric acid(UA) detection. Cyclic voltammetry, electrochemical impedance spectroscopy and atomic force microscopy were employed to study the characteristic of the GNPs/PAn-LB film. Electrochemical behaviors of EP and UA at the modified electrode were investigated in pH 6.6 phosphate buffer solutions. A sensitive electroanalytical method for simultaneous determination of EP and UA was proposed with high precision and good reproducibility.
authors.affiliation: College of Chemistry and Molecular Engineering and School of Material Science & Engineering, Zhengzhou University, 450001, PR China.
authors.forename: Lina
authors.initials: L
authors.lastname: Zou
authors.forename: Yinfeng
authors.initials: Y
authors.lastname: Li
authors.forename: Shaokui
authors.initials: S
authors.lastname: Cao
authors.forename: Baoxian
authors.initials: B
authors.lastname: Ye
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D001205:Ascorbic Acid / Q000737:chemistry; D002244:Carbon; D055664:Electrochemical Techniques; D004566:Electrodes; D004837:Epinephrine / Q000097:blood*; D006046:Gold / Q000737:chemistry*; D006801:Humans; D053768:Metal Nanoparticles / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014527:Uric Acid / Q000097:blood*
chemical_list: D000814:Aniline Compounds; C416807:polyaniline; D014527:Uric Acid; D002244:Carbon; D006046:Gold; D001205:Ascorbic Acid; D004837:Epinephrine
keywords: Epinephrine; Gold nanoparticles; Langmuir–Blodgett Film; Polyaniline; Uric acid; Voltammetric sensor