A New Potentiometric Sensor Based on Carbon Paste Electrode Modified with Methacrylic Acid Based-Ion Imprinted Polymer for Nickel Ion Determination

被引：1
作者：
Alizadeh, Taher [1 ]
Rashedi, Maryam [1 ]
Ghadiri, Amir Mohammad [1 ]
机构：
[1] Univ Tehran, Univ Coll Sci, Fac Chem, Dept Analyt Chem, POB 14155-6455, Tehran, Iran
来源：
ANALYTICAL & BIOANALYTICAL ELECTROCHEMISTRY | 2023年 / 15卷 / 10期
关键词：
Carbon paste; Ion imprinted polymer; Potentiometry; Nickel ion; Methacrylic acid; ADSORPTIVE STRIPPING VOLTAMMETRY; ELECTROCHEMICAL SENSING PLATFORM; PVC MEMBRANE-ELECTRODE; SELECTIVE DETERMINATION; SAMPLES; PRECONCENTRATION; PERFORMANCE; CARRIER; MWCNTS; LEAD;
D O I：
10.22034/abec.2023.708675
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A novel ion-imprinted polymer (IIP)-based potentiometric sensor is introduced for precise determination of Ni2+ ions. The imprinted polymer was prepared using methacrylic acid and ethylene glycol dimethacrylate as functional monomer and cross-linker. This potentiometric sensor is a carbon paste electrode, composed of IIP particles (4%), graphite (64%), n-eicosane (25%), and sodium tetra phenyl borate (5%) in its optimum condition. The sensor exhibited a Nernstian slope of 29.1 +/- 0.4 mVdecade-1 in the concentration range of 1.0x10-6 to 1.0x10-1 mol L-1 with a detection limit of 5x10-7mol L-1. The sensor demonstrated a stable potential response in the pH range of 4-7 and fast response times below 1 minute. Thanks to the high selectivity of the IIP-based probe, common interfering species had almost no effect on its response toward Ni2+ ions. The proposed sensor was prosperously applied to analyze the Ni2+ content of real sea, lake, and industrial water samples.
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页码：860 / 873
页数：14
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