Fabrication of a novel palladium membrane sensor for its determination in environmental and biological samples

IF 3.5 Q3 ENGINEERING, ENVIRONMENTAL
Adil O. S. Bahathiq, Ahmad O. Babalghith, Alaa S. Amin and Abdelrazek M. Askar
{"title":"Fabrication of a novel palladium membrane sensor for its determination in environmental and biological samples","authors":"Adil O. S. Bahathiq, Ahmad O. Babalghith, Alaa S. Amin and Abdelrazek M. Askar","doi":"10.1039/D4VA00056K","DOIUrl":null,"url":null,"abstract":"<p >A novel sensitive, specific, and reversible optical sensor for the palladium(<small>II</small>) ion was created by impregnating an agarose membrane with 4-(2-amino-3-hydroxypyridine-4-ylazo)1,5-dimethyl-2-phenyl-1,2-dihydropyrazol-3-one (AHDDO). Spectrophotometric studies of complex formation between the AHDDO base ligand and Mn<small><sup>2+</sup></small>, Cd<small><sup>2+</sup></small>, Co<small><sup>2+</sup></small> Hg<small><sup>2+</sup></small>, Zn<small><sup>2+</sup></small>, Cu<small><sup>2+</sup></small>, Pd<small><sup>2+</sup></small>, Sr<small><sup>2+</sup></small>, Al<small><sup>3+</sup></small>, Fe<small><sup>3+</sup></small>, Au<small><sup>3+</sup></small>, and Ag<small><sup>+</sup></small> metal ions in an ethanolic solution indicated a substantially larger stability for the palladium ion complex. Therefore, the AHDDO was immobilized on a clear agarose film and used as a suitable ionophore for building a selective Pd<small><sup>2+</sup></small> optical sensor. By combining the sensing membrane with Pd<small><sup>2+</sup></small> ions at pH 5.75, a transparent color change from orange to violet was observed. On the immobilization of AHDDO, the effects of ionophore concentration, pH, temperature, stirring, and reaction time were investigated. A linear relationship was observed between the membrane absorbance at 633 nm and Pd<small><sup>2+</sup></small> concentrations in a range from 15 to 225 ng mL<small><sup>−1</sup></small> with detection (3<em>σ</em>) and quantification (10<em>σ</em>) limits of 4.25 and 14.25 ng mL<small><sup>−1</sup></small>, respectively. For the determination of Pd<small><sup>2+</sup></small> ions, no significant interference from at least 400-fold excess concentrations of a number of possibly interfering ions was found. The sensor exhibits remarkable selectivity for Pd<small><sup>2+</sup></small> ions and can be regenerated through exposure to 0.15 M HNO<small><sub>3</sub></small>. The sensor has been successfully used to find palladium in biological, soil, road, and water samples.</p>","PeriodicalId":72941,"journal":{"name":"Environmental science. Advances","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2024-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/va/d4va00056k?page=search","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental science. Advances","FirstCategoryId":"1085","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/va/d4va00056k","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0

Abstract

A novel sensitive, specific, and reversible optical sensor for the palladium(II) ion was created by impregnating an agarose membrane with 4-(2-amino-3-hydroxypyridine-4-ylazo)1,5-dimethyl-2-phenyl-1,2-dihydropyrazol-3-one (AHDDO). Spectrophotometric studies of complex formation between the AHDDO base ligand and Mn2+, Cd2+, Co2+ Hg2+, Zn2+, Cu2+, Pd2+, Sr2+, Al3+, Fe3+, Au3+, and Ag+ metal ions in an ethanolic solution indicated a substantially larger stability for the palladium ion complex. Therefore, the AHDDO was immobilized on a clear agarose film and used as a suitable ionophore for building a selective Pd2+ optical sensor. By combining the sensing membrane with Pd2+ ions at pH 5.75, a transparent color change from orange to violet was observed. On the immobilization of AHDDO, the effects of ionophore concentration, pH, temperature, stirring, and reaction time were investigated. A linear relationship was observed between the membrane absorbance at 633 nm and Pd2+ concentrations in a range from 15 to 225 ng mL−1 with detection (3σ) and quantification (10σ) limits of 4.25 and 14.25 ng mL−1, respectively. For the determination of Pd2+ ions, no significant interference from at least 400-fold excess concentrations of a number of possibly interfering ions was found. The sensor exhibits remarkable selectivity for Pd2+ ions and can be regenerated through exposure to 0.15 M HNO3. The sensor has been successfully used to find palladium in biological, soil, road, and water samples.

Abstract Image

制作新型钯膜传感器以测定环境和生物样品中的钯含量
通过在琼脂糖膜上浸渍 4-(2-氨基-3-羟基吡啶-4-偶氮)1,5-二甲基-2-苯基-1,2-二氢吡唑-3-酮(AHDDO),制备了一种新型灵敏、特异和可逆的钯(II)离子光学传感器。分光光度法研究了 AHDDO 碱配体与 Mn2+、Cd2+、Co2+、Hg2+、Zn2+、Cu2+、Pd2+、Sr2+、Al3+、Fe3+、Au3+ 和 Ag+ 金属离子在乙醇溶液中形成的络合物,结果表明钯离子络合物具有更高的稳定性。因此,AHDDO 被固定在透明的琼脂糖薄膜上,并被用作构建选择性 Pd2+ 光学传感器的合适离子载体。在 pH 值为 5.75 时,将传感膜与 Pd2+ 离子结合,可观察到明显的橙色到紫色的颜色变化。研究了离子源浓度、pH 值、温度、搅拌和反应时间对固定 AHDDO 的影响。在 15-225 ng mL-1 的范围内,膜在 633 nm 处的吸光度与 Pd2+ 浓度之间呈线性关系,检测限(3σ)和定量限(10σ)分别为 4.25 和 14.25 ng mL-1。在测定 Pd2+ 离子时,没有发现浓度为 400 倍的多种可能的干扰离子的明显干扰。该传感器已成功用于生物、土壤、道路和水样中钯的检测。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
1.90
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信