A cobalt(II)-selective PVC membrane based on a Schiff base complex of N,N′-bis(salicylidene)-3,4-diaminotoluene

被引:352
作者
Gupta, VK [1 ]
Singh, AK [1 ]
Mehtab, S [1 ]
Gupta, B [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Roorkee 247667, Uttar Pradesh, India
关键词
cobalt-selective electrode; PVC membrane electrodes; Schiff base and potentiometric sensors;
D O I
10.1016/j.aca.2006.02.038
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A new PVC membrane electrode for Co2+ based on N,N'-bis(salicylidene)-3,4-diaminotoluene, an excellent neutral carrier, has been fabricated using sodium tetraphenylborate (NaTPB) as an anionic excluder and dioctylphthalte (DOP) as a solvent mediator. The electrode exhibits a linear potential response in the concentration range of 7.9 x 10(-8) to 1.0 x 10(-1) M with a slope of 30 +/- 0.2 mV per decade. The detection limit of the proposed sensor is 5.0 x 10(-8) M and it can be used over a period of 5 months. The proposed sensor revealed good selectivity over a wide variety of other cations including alkali, alkaline earth, heavy and transition metals and could be used in the pH range of 2.0-9.0. This electrode was successfully applied for the determination of Co2+ in real samples and as an indicator electrode in potentiometric titration of cobalt ions. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:5 / 10
页数:6
相关论文
共 54 条
[1]   Aluminium(III)-selective electrode based on a newly synthesized tetradentate Schiff base [J].
Abbaspour, A ;
Esmaeilbeig, AR ;
Jarrahpour, AA ;
Khajeh, B ;
Kia, R .
TALANTA, 2002, 58 (02) :397-403
[2]   Copper(II)-selective membrane electrode based on a recently synthesized naphthol-derivative Schiff's base [J].
Alizadeh, N ;
Ershad, S ;
Naeimi, H ;
Sharghi, H ;
Shamsipur, M .
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1999, 365 (06) :511-515
[3]   LIPOPHILIC SALTS AS MEMBRANE ADDITIVES AND THEIR INFLUENCE ON THE PROPERTIES OF MACROELECTRODES AND MICROELECTRODES BASED ON NEUTRAL CARRIERS [J].
AMMANN, D ;
PRETSCH, E ;
SIMON, W ;
LINDNER, E ;
BEZEGH, A ;
PUNGOR, E .
ANALYTICA CHIMICA ACTA, 1985, 171 (MAY) :119-129
[4]   NEUTRAL CARRIER BASED ION-SELECTIVE ELECTRODE FOR THE DETERMINATION OF TOTAL CALCIUM IN BLOOD-SERUM [J].
ANKER, P ;
WIELAND, E ;
AMMANN, D ;
DOHNER, RE ;
ASPER, R ;
SIMON, W .
ANALYTICAL CHEMISTRY, 1981, 53 (13) :1970-1974
[5]   Cationic group 13 complexes [J].
Atwood, DA .
COORDINATION CHEMISTRY REVIEWS, 1998, 176 :407-430
[6]  
AWASTHI SP, 1991, J ELECTROCHEM SOC IN, V40, P23
[7]   Determination of unbiased selectivity coefficients of neutral carrier-based cation-selective electrodes [J].
Bakker, E .
ANALYTICAL CHEMISTRY, 1997, 69 (06) :1061-1069
[8]   Carrier-based ion-selective electrodes and bulk optodes. 1. General characteristics [J].
Bakker, E ;
Buhlmann, P ;
Pretsch, E .
CHEMICAL REVIEWS, 1997, 97 (08) :3083-3132
[9]   Direct determination of cobalt and zinc in samples of different volatility by means of solid sampling-graphite furnace atomic absorption spectrometry [J].
Belarra, MA ;
Crespo, C ;
Martínez-Garbayo, MR ;
Resano, M .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2003, 58 (10) :1847-1858
[10]  
CADORE, 2005, J BRAZ CHEM SOC, V165, P957