Rubeanic acid as novel carrier in construction of selective membrane sensor for La(III)

被引：45

作者：

Jain, AK ^{[1
]}

Singh, AK ^{[1
]}

Mehtab, S ^{[1
]}

Saxena, P ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Roorkee 247667, Uttar Pradesh, India

来源：

ANALYTICA CHIMICA ACTA | 2005年 / 551卷 / 1-2期

关键词：

rubeanic acid; La(III)-selective electrode; membrane sensor; potentiometry;

D O I：

10.1016/j.aca.2005.07.016

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new polyvinylchloride-based membrane of rubeanic acid as an ion carrier was fabricated using oleic acid as lipophilic additive. The best performance was exhibited by the membrane having composition rubeanic acid:PVC:OA:o-NPOE as 5:180:18:208 (w/w). The sensor exhibited a Nernstian response for La3+ over a wide concentration range of 3.2 x 10(-8) to 1.0 x 10(-2) M with a detection limit of 2.5 x 10(-8) M. It showed response time of less than 15 s and could be used for 5 months without any significant divergence. The proposed membrane sensor revealed good selectivity for La3+ over a wide variety of other metal ions and can be used in a pH range of 3.5-9.5 and in mixtures containing up to 30% (v/v) non-aqueous content. It was successfully used as an indicator electrode in the potentiometric titration of La(III) against EDTA. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：45 / 50

页数：6

共 40 条

[1] METAL-COMPLEXES OF RUBEANIC ACID .3. LARGE-ANGLE X-RAY-SCATTERING STUDIES OF AMORPHOUS COPPER(II) AND NICKEL(II) COMPLEXES [J].

ABBOUDI, M ;

MOSSET, A ;

GALY, J .

INORGANIC CHEMISTRY, 1985, 24 (13) :2091-2094

[2] Lanthanum-selective membrane electrode based on 2,2′-dithiodipyridine [J].

Akhond, M ;

Najafi, MB ;

Tashkhourian, J .

ANALYTICA CHIMICA ACTA, 2005, 531 (02) :179-184

[3]

Amarchand S, 2000, ELECTROANAL, V12, P522, DOI 10.1002/(SICI)1521-4109(200005)12:7<522::AID-ELAN522>3.0.CO

[4]

2-D

[5] PREPARATION OF NEUTRAL IONOPHORES FOR ALKALI AND ALKALINE-EARTH METAL CATIONS AND THEIR APPLICATION IN ION-SELECTIVE MEMBRANE ELECTRODES [J].

AMMANN, D ;

BISSIG, R ;

GUGGI, M ;

PRETSCH, E ;

SIMON, W ;

BOROWITZ, IJ ;

WEISS, L .

HELVETICA CHIMICA ACTA, 1975, 58 (06) :1535-1548

[6]

ANGHILERI LJ, 1987, ANTICANCER RES, V7, P1205

[7] 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

[8]

BAILER JC, 1973, COMPREHENSIVE INORGA, V4

[9]

Berenzani J., 1971, J RADIOANAL CHEM, V9, P81

[10] RECOMMENDATIONS FOR NOMENCLATURE OF ION-SELECTIVE ELECTRODES - (IUPAC RECOMMENDATIONS 1994) [J].

BUCK, RP ;

LINDNER, E .

PURE AND APPLIED CHEMISTRY, 1994, 66 (12) :2527-2536

← 1 2 3 4 →