{"title":"聚合物膜传感器电分析测定铜(II)离子","authors":"Oguz Özbek, M. Gürdere, Caglar Berkel, Ö. Isildak","doi":"10.33961/jecst.2022.00661","DOIUrl":null,"url":null,"abstract":"In this study, a new potentiometric sensor selective to copper(II) ions was developed and characterized. The developed sensor has a polymeric membrane and contains 4.0% electroactive material (ionophore), 33.0% poly(vinyl chloride) (PVC), 63.0% bis(2–ethylhexyl)sebacate (BEHS) and 1.0% potassium tetrakis( p –chlorophenyl)borate (KT p ClPB). This novel cop-per(II)–selective sensor exhibits a Nernstian response over a wide concentration range from 1.0×10 -6 to 1.0×10 -1 mol L -1 with a slope of 29.6 (±1.2) mV decade -1 , and a lower detection limit of 8.75×10 -7 mol L -1 . The sensor, which was pro-duced economically by synthesizing the ionophore in the laboratory, has a good selectivity and repeatability, fast response time and stable potentiometric behaviour. The potential response of the sensor remains unaffected of pH in the range of 5.0–10.0. Based on the analytical applications of the sensor, we showed that it can be used as an indicator electrode in the quantification of Cu 2+ ions by potentiometric titration against EDTA, and can also be successfully utilized for the determination of copper(II) ions in different real samples.","PeriodicalId":15542,"journal":{"name":"Journal of electrochemical science and technology","volume":" ","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2022-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Electroanalytical Determination of Copper(II) Ions Using a Polymer Membrane Sensor\",\"authors\":\"Oguz Özbek, M. Gürdere, Caglar Berkel, Ö. Isildak\",\"doi\":\"10.33961/jecst.2022.00661\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this study, a new potentiometric sensor selective to copper(II) ions was developed and characterized. The developed sensor has a polymeric membrane and contains 4.0% electroactive material (ionophore), 33.0% poly(vinyl chloride) (PVC), 63.0% bis(2–ethylhexyl)sebacate (BEHS) and 1.0% potassium tetrakis( p –chlorophenyl)borate (KT p ClPB). This novel cop-per(II)–selective sensor exhibits a Nernstian response over a wide concentration range from 1.0×10 -6 to 1.0×10 -1 mol L -1 with a slope of 29.6 (±1.2) mV decade -1 , and a lower detection limit of 8.75×10 -7 mol L -1 . The sensor, which was pro-duced economically by synthesizing the ionophore in the laboratory, has a good selectivity and repeatability, fast response time and stable potentiometric behaviour. The potential response of the sensor remains unaffected of pH in the range of 5.0–10.0. Based on the analytical applications of the sensor, we showed that it can be used as an indicator electrode in the quantification of Cu 2+ ions by potentiometric titration against EDTA, and can also be successfully utilized for the determination of copper(II) ions in different real samples.\",\"PeriodicalId\":15542,\"journal\":{\"name\":\"Journal of electrochemical science and technology\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2022-11-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of electrochemical science and technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.33961/jecst.2022.00661\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of electrochemical science and technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.33961/jecst.2022.00661","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 3
摘要
本研究研制了一种新型铜离子选择性电位传感器,并对其进行了表征。所开发的传感器具有聚合物膜,含有4.0%电活性物质(离子载体),33.0%聚氯乙烯(PVC), 63.0%双(2 -乙基己基)癸二酸酯(BEHS)和1.0%四烷基(对氯苯基)硼酸钾(KT p ClPB)。这种新型的铜-per(II)选择性传感器在1.0×10 -6至1.0×10 -1 mol L -1的宽浓度范围内表现出Nernstian响应,斜率为29.6(±1.2)mV decade -1,检测限为8.75×10 -7 mol L -1。该传感器具有良好的选择性和重复性、快速的响应时间和稳定的电位行为。在5.0-10.0范围内,传感器的电位响应不受pH的影响。基于该传感器的分析应用,我们证明了它可以作为指示电极用于EDTA电位滴定法定量cu2 +离子,也可以成功地用于不同实际样品中铜(II)离子的测定。
Electroanalytical Determination of Copper(II) Ions Using a Polymer Membrane Sensor
In this study, a new potentiometric sensor selective to copper(II) ions was developed and characterized. The developed sensor has a polymeric membrane and contains 4.0% electroactive material (ionophore), 33.0% poly(vinyl chloride) (PVC), 63.0% bis(2–ethylhexyl)sebacate (BEHS) and 1.0% potassium tetrakis( p –chlorophenyl)borate (KT p ClPB). This novel cop-per(II)–selective sensor exhibits a Nernstian response over a wide concentration range from 1.0×10 -6 to 1.0×10 -1 mol L -1 with a slope of 29.6 (±1.2) mV decade -1 , and a lower detection limit of 8.75×10 -7 mol L -1 . The sensor, which was pro-duced economically by synthesizing the ionophore in the laboratory, has a good selectivity and repeatability, fast response time and stable potentiometric behaviour. The potential response of the sensor remains unaffected of pH in the range of 5.0–10.0. Based on the analytical applications of the sensor, we showed that it can be used as an indicator electrode in the quantification of Cu 2+ ions by potentiometric titration against EDTA, and can also be successfully utilized for the determination of copper(II) ions in different real samples.