Electrochemical characterization and determination of mercury using carbon paste electrodes modified with cyclodextrins

被引：28
|
作者：
Roa-Morales, G
Ramírez-Silva, MT
González, RL
Galicia, L
Romero-Romo, M
机构：
[1] Univ Autonoma Metropolitana Azcapotzalco, Dept Mat, Mexico City 02200, DF, Mexico
[2] Univ Autonoma Metropolitana Iztapalapa, Dept Quim, Mexico City 09340, DF, Mexico
[3] Univ Autonoma Estado Mexico, Fac Quim, Toluca 50120, Mexico
来源：
ELECTROANALYSIS | 2005年 / 17卷 / 08期
关键词：
carbon paste electrodes; cyclodextrins; mercury;
D O I：
10.1002/elan.200403099
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this work the characterization and determination of mercury in HClO4 media using carbon paste electrodes modified with alpha- and beta-cyclodextrins (CPE alpha-CD and CPE beta-CD) at E-d = - 0.7 V with a t(d) = 20 s and a potential scan nu = 20 mV s(-1) is studied.. The statistical results obtained indicate that the modified electrodes displayed a better analytical performance as compared to that obtained with the unmodified CPE. The detection limits for the CPE alpha-CD and for the CPE beta-CD were 0.05 and 0.09 mu M, respectively, while for the CPE it was 0.41 mu M. The CPE beta-CD exhibited greater sensitivity as compared to that of the CPE alpha-CD.
引用
收藏
页码：694 / 700
页数：7
相关论文
共 50 条
  • [1] Carbon paste electrodes electrochemically modified with cyclodextrins
    Gabriela Roa Morales
    Teresa Ramírez Silva
    Laura Galicia
    [J]. Journal of Solid State Electrochemistry, 2003, 7 : 355 - 360
  • [2] Carbon paste electrodes electrochemically modified with cyclodextrins
    Morales, GR
    Silva, TR
    Galicia, L
    [J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2003, 7 (06) : 355 - 360
  • [3] Electrochemical Behavior and Determination of Rutin on Modified Carbon Paste Electrodes
    Macikova, Pavla
    Halouzka, Vladimir
    Hrbac, Jan
    Bartak, Petr
    Skopalova, Jana
    [J]. SCIENTIFIC WORLD JOURNAL, 2012,
  • [4] Voltammetric trace determination of mercury using plant refuse modified carbon paste electrodes
    Harsha Devnani
    Soami Piara Satsangee
    [J]. Environmental Monitoring and Assessment, 2013, 185 : 9333 - 9342
  • [5] Voltammetric trace determination of mercury using plant refuse modified carbon paste electrodes
    Devnani, Harsha
    Satsangee, Soami Piara
    [J]. ENVIRONMENTAL MONITORING AND ASSESSMENT, 2013, 185 (11) : 9333 - 9342
  • [6] ELECTROCHEMICAL CHARACTERIZATION OF CARBON PASTE ELECTRODES MODIFIED WITH NATURAL ZEOLITE
    Zacahua Tlacuatl, G.
    Castro Arellano, J. J.
    Manzo-Robledo, A.
    [J]. CHEMICAL ENGINEERING COMMUNICATIONS, 2009, 196 (10) : 1178 - 1188
  • [7] An oxidative procedure for the electrochemical determination of chromium(VI) using modified carbon paste electrodes
    Sánchez-Fernández, ME
    Cubillana-Aguilera, LM
    Palacios-Satander, JM
    Naranjo-Rodríguez, I
    de Cisneros, JLHH
    [J]. BULLETIN OF ELECTROCHEMISTRY, 2005, 21 (12): : 529 - 535
  • [8] Electrochemical Determination of Various Alkaloids Using Carbon Paste Electrodes
    Mikysek, Tomas
    Kolesikova, Katerina
    Rosecka, Kamila
    Svancara, Ivan
    [J]. XXXVII MODERNI ELEKTROCHEMICKE METODY, 2017, : 151 - 154
  • [9] Electrochemical Determination of Mercury at Trace Levels Using Eichhornia Crassipes Modified Carbon Paste Electrode
    Rajawat, Deepak Singh
    Srivastava, Shalini
    Satsangee, Soami Piara
    [J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2012, 7 (11): : 11456 - 11469
  • [10] Study of electrochemical determination of capsaicin and dihydrocapsaicin at carbon paste electrodes modified by β-cyclodextrin
    de Leon Zavala, Elena Diaz
    Torres Rodriguez, Luz Maria
    Montes-Rojas, Antonio
    Torres Mendoza, Victor Hugo
    Linan Gonzalez, Alejandra Elizabeth
    [J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2018, 814 : 174 - 183
12345