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All-Solid-State Potentiometric Cu(II)-Selective Sensor Based on Ion Imprinted Methacrylamide Polymer
Electroanalysis ( IF 2.7 ) Pub Date : 2018-03-08 , DOI: 10.1002/elan.201700849
Murat Yolcu 1 , Nurşen Dere 1
Affiliation  

In this study; a novel all-solid-state type potentiometric microsensor based on ion-imprinted polymer (IIP) has been developed for Cu(II) sensing. The IIP was synthesized by suspension polymerization by using Cu(II) ion, methacrylamide, methacrylic acid and ethylene glycol dimethacrylate as template, functional monomers and cross-linker respectively. The resultant Cu(II)-imprinted polymer was used as ionophore in the structure of the PVC membrane to obtain a selective potentiometric response towards Cu(II) ions. The fabricated microsensor exhibited a highly selective Nernstian response (28.6±2.2 mV per decade) over the concentration range of 10−1 to 10−6 mol L−1 of Cu2+ ion for 2 months without any considerable divergence in potentials. The response time of the microsensor was considerably short (less than 15 s) and its detection limit was determined as 7.6×10−7 mol L−1. The microsensor was effectively performed in the pH range of 4–7. The microsensor was successfully used as an indicator electrode in the potentiometric titration of Cu(II) ions with EDTA. The proposed microsensor was also used for the determination of Cu(II) contents of some environmental water samples. The obtained potentiometric results were in good harmony with the results obtained by the AAS method.

中文翻译:

基于离子印迹甲基丙烯酰胺聚合物的全固态电位 Cu(II) 选择性传感器

在这项研究中; 基于离子印迹聚合物 (IIP) 的新型全固态电位微传感器已被开发用于 Cu(II) 传感。以Cu(II)离子、甲基丙烯酰胺、甲基丙烯酸和乙二醇二甲基丙烯酸酯分别为模板剂、功能单体和交联剂,通过悬浮聚合合成IIP。所得的 Cu(II) 印迹聚合物用作 PVC 膜结构中的离子载体,以获得对 Cu(II) 离子的选择性电位响应。制造的微型传感器在 10-1 至 10-6 mol L-1 的 Cu2+ 离子浓度范围内表现出高度选择性的能斯脱响应(28.6±2.2 mV/10 倍),持续 2 个月,电位没有任何显着差异。微传感器的响应时间相当短(小于 15 s),其检测限为 7.6×10-7 mol L-1。微传感器在 4-7 的 pH 范围内有效执行。该微传感器成功地用作指示电极,用于用 EDTA 电位滴定 Cu(II) 离子。所提出的微传感器还用于测定一些环境水样中的 Cu(II) 含量。获得的电位结果与 AAS 方法获得的结果非常一致。所提出的微传感器还用于测定一些环境水样中的 Cu(II) 含量。获得的电位结果与 AAS 方法获得的结果非常一致。所提出的微传感器还用于测定一些环境水样中的 Cu(II) 含量。获得的电位结果与 AAS 方法获得的结果非常一致。
更新日期:2018-03-08
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