Aggregates of gold nanoparticles with complexes containing ruthenium as modifiers in carbon paste electrodes

被引：12

作者：

de Oliveira, Katia M. ^{[1
]}

dos Santos, Thais C. C. ^{[1
]}

Dinelli, Luis R. ^{[1
]}

Marinho, Juliane Z. ^{[2
]}

Lima, Renata C. ^{[2
]}

Bogado, Andre L. ^{[1
]}

机构：

[1] Univ Fed Uberlandia, Fac Ciencias Integradas Pontal, BR-38304402 Ituiutaba, MG, Brazil

[2] Univ Fed Uberlandia, Inst Quim, BR-38400902 Uberlandia, MG, Brazil

来源：

POLYHEDRON | 2013年 / 50卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

Gold nanoparticles; Ruthenium complexes; Carbon paste electrodes; Acetaminophen detection; ELECTROCHEMICAL DETERMINATION; AMPEROMETRIC DETERMINATION; VOLTAMMETRIC DETERMINATION; IMMOBILIZATION; ACETAMINOPHEN; INTERFACE; BEHAVIOR; SENSOR; SIZE;

D O I：

10.1016/j.poly.2012.11.014

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Gold nanoparticles (AuNPs(-)) were synthesized through the reduction of HAuCl4 with a solution of sodium citrate 1%, getting negatively charged species. [(RuCl)-Cl-II(dppb)(bipy)(py)](PF6) and [(RuCl2)-Cl-III(dppb) (phen)](PF6) were also synthesized as monocationic species (Ru+), where dppb = 1,4-bis(diphenylphosphino)butane, bipy = 2,2'-bipyridine, phen = 1,10-phenantroline and py = pyridine. Aggregates of AuNPs(-) with negatively charged and with a cationic complex containing ruthenium (II) and (III) were obtained by means of electrostatic interactions. The AuNPs- and aggregates (Ru-AuNPs) were analyzed by ultraviolet/visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR), nuclear magnetic resonance of phosphorous (P-31{H-1) NMR), cyclic voltammetry (CV) and field emission scanning electron microscopy (FE-SEM). The AuNPs(-) and the Ru-AuNPs were used as modifiers in the preparation of carbon paste electrodes and their performance were evaluated by cyclic voltammetry to determination of acetaminophen. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：410 / 417

页数：8

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