Salicylate Ion-Selective Electrode Based on a Calix[4]arene as Ionophore

被引:10
作者
Ayanoglu, Melek Nur [1 ]
Erturun, H. Elif Kormali [1 ]
Ozel, Ayca Demirel [1 ]
Sahin, Ozlem [2 ]
Yilmaz, Mustafa [2 ]
Kilic, Esma [1 ]
机构
[1] Ankara Univ, Fac Sci, Dept Chem, TR-06100 Ankara, Turkey
[2] Selcuk Univ, Fac Arts & Sci, Dept Chem, Konya, Turkey
关键词
Salicylate-selective electrode; Calix[4]arene; Potentiometry; Salicylate determination; POTENTIOMETRIC MEMBRANE-ELECTRODE; TANDEM MASS-SPECTROMETRY; NEUTRAL CARRIER; LIQUID-MEMBRANE; SCHIFF-BASE; COPPER(II) COMPLEX; ACID; CALIXARENE; SENSOR; DERIVATIVES;
D O I
10.1002/elan.201400737
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A salicylate-selective electrode based on calix[4]arene derivative was developed and its response characteristics were investigated. The optimum membrane composition was 1% ionophore, 30% PVC, 69% DOS. The electrode exhibited a Nernstian slope of 58.8 +/- 0.5mV/pSal in the range of 1.0x10(-5)-1.0x10(-1)M with a detection limit of 4.3x10(-6)M at pH4.0, 20 +/- 1 degrees C. The potentiometric response of the electrode in the presence of different anions was investigated by the separate solution method. The lifetime was found at least 4months, and its response time was 5-10s. It was successfully used for the potentiometric determination of salicylate in pharmaceutical preparations.
引用
收藏
页码:1676 / 1684
页数:9
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