Carbon nanotube composite coated platinum electrode for detection of Cr(III) in real samples

被引：47
作者：
Abbaspour, Abdolkarim [1 ]
Izadyar, Anahita [1 ]
机构：
[1] Shiraz Univ, Dept Chem, Coll Sci, Shiraz 71454, Iran
来源：
TALANTA | 2007年 / 71卷 / 02期
关键词：
multi-walled carbon nanotube (MWNT); PVC; carbon composite coated platinum electrode; Cr(III); 1,5-diphenylcarbazide; natural waters; multivitamin;
D O I：
10.1016/j.talanta.2006.05.085
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This paper demonstrates the application of composite multi-walled carbon nanotube (MWNT) polyvinylchloride (MWNT-PVC) based on 1,5diphenylcarbazide as chromium ionophore in potentiometric measurement. The sensor shows a good Nernstian slope of 19.52 +/- 0.40 mV/decade in a wide linear range concentration of 6.3 x 10(-8) to 1.0 X 10(-2) M for Cr(NO3)(3). The detection limit of this electrode was found to be 3.2 x 10(-8) M of Cr(NO3)(3) and is applicable in a pH range of 3.0-6.8. It has a short response time of about 10s. This chromium electrode has a good selectivity over 16 various metal ions. The practical analytical utility of this electrode was demonstrated by measurement of Cr(III) in drinking water and mineral water samples without any serious preliminary pre-treatment and chromium in multivitamin. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：887 / 892
页数：6
相关论文
共 46 条
  • [1] Carbon composition PVC based membrane in a highly selective and sensitive coated wire electrode for silver ion
    Abbaspour, A
    Izadyar, A
    Sharghi, H
    [J]. ANALYTICA CHIMICA ACTA, 2004, 525 (01) : 91 - 96
  • [2] Copper(II)-selective electrode based on dithioacetal
    Abbaspour, A
    Kamyabi, MA
    [J]. ANALYTICA CHIMICA ACTA, 2002, 455 (02) : 225 - 231
  • [3] Thiocyanate-selective electrode based on unsymmetrical benzoN4 nickel(II) macrocyclic complexes
    Abbaspour, A
    Kamyabi, MA
    Esmaeilbeig, AR
    Kia, R
    [J]. TALANTA, 2002, 57 (05) : 859 - 867
  • [4] Chromium(III) ion-selective electrode based on 4-dimethylaminoazobenzene
    Abbaspour, A
    Izadyar, A
    [J]. TALANTA, 2001, 53 (05) : 1009 - 1013
  • [5] Highly selective electrode for Nickel(II) ion based on 1.5-diphenylthiocarbazone (dithizone)
    Abbaspour, A
    Izadyar, A
    [J]. MICROCHEMICAL JOURNAL, 2001, 69 (01) : 7 - 11
  • [6] Capability of a carbon-polyvinylchloride composite electrode for the detection of dopamine, ascorbic acid and uric acid
    Aguilar, R
    Dávila, MM
    Elizalde, MP
    Mattusch, J
    Wennrich, R
    [J]. ELECTROCHIMICA ACTA, 2004, 49 (06) : 851 - 859
  • [7] A PVC-graphite composite electrode for electroanalytical use. Preparation and some applications
    Albertus, F
    Llerena, A
    Alpizar, J
    Cerda, V
    Luque, M
    Rios, A
    Valcarcel, M
    [J]. ANALYTICA CHIMICA ACTA, 1997, 355 (01) : 23 - 32
  • [8] Carbon nanotube polymer composites
    Andrews, R
    Weisenberger, MC
    [J]. CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2004, 8 (01) : 31 - 37
  • [9] BRIGLIN SM, 2002, SENSOR ACTUAT B-CHEM, V82, P1
  • [10] Carrier-based ion-selective electrodes and bulk optodes. 2. Ionophores for potentiometric and optical sensors
    Buhlmann, P
    Pretsch, E
    Bakker, E
    [J]. CHEMICAL REVIEWS, 1998, 98 (04) : 1593 - 1687
12345