Impedimetric and Stripping Voltammetric Detection of Sub-Nanomolar Amounts of Mercury at a Gold Nanoparticle Modified Glassy Carbon Electrode

被引：10
|
作者：
Behzad, Mahsa [1 ]
Asgari, Mehdi [1 ]
Shamsipur, Mojtaba [2 ]
Maragheh, Mohammad Ghannadi [1 ]
机构：
[1] NSTRI, NFCRS, Tehran, Iran
[2] Razi Univ, Dept Chem, Kermanshah, Iran
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2013年 / 160卷 / 03期
关键词：
ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; OLIGONUCLEOTIDE-DNA INTERACTIONS; COMPOSITE FILM; WATER SAMPLES; IMMUNOSENSORS; EXTRACTION; BIOSENSORS; LEAD(II); CATALASE; BEHAVIOR;
D O I：
10.1149/2.011304jes
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A glassy carbon electrode (GCE) modified with gold nanoparticles (GNPs) was used for the determination of sub-nanmolar amounts of mercury in water samples using differential pulse stripping voltammetry (DPSV) and electrochemical impedance spectroscopy (EIS). The GNPs/ GCE electrode revealed a significant improvement for mercury detection compared with the unmodified GCE. Under the optimized experimental conditions, the modified GNPs/GCE revealed broad linear ranges of 1 to 500 nM (LOD = 0.1 nM) and 10-50 pM (LOD = 0.05 pM) for DPSV and EIS, respectively. The limits of detections obtained are much below the corresponding guideline value from the World Health Organization (WHO): The proposed DPSV method was successfully applied to the analysis of mercury content of tap water samples. (C) 2013 The Electrochemical Society. [DOI: 10.1149/2.011304jes] All rights reserved.
引用
收藏
页码：B31 / B36
页数：6
相关论文
共 50 条
  • [21] Stripping voltammetric analysis of dicofol on graphene-modified glassy carbon electrode
    Berna Koçak
    Engin Er
    Hüseyin Çelikkan
    Ionics, 2015, 21 : 2337 - 2344
  • [22] Stripping voltammetric determination of Epinephrine applying sulfacetamide modified glassy carbon electrode
    Ahmed, T. A.
    Ghandour, M. A.
    Khalil, M. M.
    INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2020, 15 (04): : 3143 - 3156
  • [23] Adsorptive stripping voltammetric detection of single-stranded DNA at electrochemically modified glassy carbon electrode
    Wang, HS
    Ju, HX
    Chen, HY
    ELECTROANALYSIS, 2002, 14 (23) : 1615 - 1620
  • [24] Selective detection of neurotransmitter serotonin by a gold nanoparticle-modified glassy carbon electrode
    Wei, Xiaohan
    Wang, Fei
    Yin, Yumin
    Liu, Qiongyan
    Zou, Lina
    Ye, Baoxian
    ANALYST, 2010, 135 (09) : 2286 - 2290
  • [25] Voltammetric detection of nanomolar levels of hypoxanthine in the presence of copper (II) at glassy carbon electrode
    Wuhan Univ J Nat Sci, 1 (99-102):
  • [26] Zirconia nanocomposites with carbon and iron(iii) oxide for voltammetric detection of sub-nanomolar levels of methyl parathion
    Gannavarapu, Krishna Prasad
    Ganesh, V
    Dandamudi, Rajesh Babu
    NANOSCALE ADVANCES, 2019, 1 (12): : 4947 - 4954
  • [27] Anodic Stripping Voltammetric Detection of Arsenic(III) at Gold Nanoparticle-Modified Glassy Carbon Electrodes Prepared by Electrodeposition in the Presence of Various Additives
    Hossain, Md Motahar
    Islam, Md. Mominul
    Ferdousi, Sara
    Okajima, Takeyoshi
    Ohsaka, Takeo
    ELECTROANALYSIS, 2008, 20 (22) : 2435 - 2441
  • [28] Preconcentration and voltammetric determination of mercury(II) at a chemically modified glassy carbon electrode
    Sousa, MDB
    Bertazzoli, R
    ANALYTICAL CHEMISTRY, 1996, 68 (07) : 1258 - 1261
  • [29] Adsorptive Stripping Voltammetric Determination of Azithromycin at a Glassy Carbon Electrode Modified by Electrochemical Oxidation
    Biljana Nigović
    Analytical Sciences, 2004, 20 : 639 - 643
  • [30] Adsorptive stripping voltammetric determination of azithromycin at a glassy carbon electrode modified by electrochemical oxidation
    Nigovic, B
    ANALYTICAL SCIENCES, 2004, 20 (04) : 639 - 643
12345