Rafaqat Naveen , Abdul Niaz , Muhammad Iqbal Zaman , Shahanzeb Khan , Abdur Rahim , Asma Zulfiqar , Muhammad Tariq , Tawfik. A. Saleh , Diogo M. F. Santos , Mabkhoot Alsaiari
{"title":"富营养化水体中基于铁络合儿茶酚置换法的磷酸盐比色检测","authors":"Rafaqat Naveen , Abdul Niaz , Muhammad Iqbal Zaman , Shahanzeb Khan , Abdur Rahim , Asma Zulfiqar , Muhammad Tariq , Tawfik. A. Saleh , Diogo M. F. Santos , Mabkhoot Alsaiari","doi":"10.1016/j.enmm.2023.100792","DOIUrl":null,"url":null,"abstract":"<div><p>A simple, sensitive, and inexpensive colorimetric indicator-displacement assay based on Fe<sup>3+</sup>-catechol complex has been developed to determine PO<sub>4</sub><sup>3-</sup>. The Fe<sup>3+</sup> and catechol formed a greenish color complex, upon the addition of PO<sub>4</sub><sup>3-</sup> to the complex, it exhibited a visual color change immediately from greenish to colorless along with UV–vis spectral change. This change was mainly attributed to the high binding affinity of PO<sub>4</sub><sup>3-</sup> with Fe<sup>3+</sup> by displacing catechol from the Fe<sup>3+</sup>-catechol complex. The developed sensor showed good sensitivity for the determination of PO<sub>4</sub><sup>3-</sup><span> in a wide linear range from 2 − 1000 µM with a limit of detection (LOD) of 0.5 µM which was found to be lower than the permissible limit. The sensor presented good selectivity towards the detection of PO</span><sub>4</sub><sup>3-</sup> in the existence of other potential interfering anions. Furthermore, the method was successfully applied to determine PO<sub>4</sub><sup>3-</sup> in eutrophicated water bodies (river and lake water) with good recoveries and without showing any significant matrix effect.</p></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Colorimetric detection of phosphate-based on iron complexing catechol-displacement assay in eutrophicated water bodies\",\"authors\":\"Rafaqat Naveen , Abdul Niaz , Muhammad Iqbal Zaman , Shahanzeb Khan , Abdur Rahim , Asma Zulfiqar , Muhammad Tariq , Tawfik. A. Saleh , Diogo M. F. Santos , Mabkhoot Alsaiari\",\"doi\":\"10.1016/j.enmm.2023.100792\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A simple, sensitive, and inexpensive colorimetric indicator-displacement assay based on Fe<sup>3+</sup>-catechol complex has been developed to determine PO<sub>4</sub><sup>3-</sup>. The Fe<sup>3+</sup> and catechol formed a greenish color complex, upon the addition of PO<sub>4</sub><sup>3-</sup> to the complex, it exhibited a visual color change immediately from greenish to colorless along with UV–vis spectral change. This change was mainly attributed to the high binding affinity of PO<sub>4</sub><sup>3-</sup> with Fe<sup>3+</sup> by displacing catechol from the Fe<sup>3+</sup>-catechol complex. The developed sensor showed good sensitivity for the determination of PO<sub>4</sub><sup>3-</sup><span> in a wide linear range from 2 − 1000 µM with a limit of detection (LOD) of 0.5 µM which was found to be lower than the permissible limit. The sensor presented good selectivity towards the detection of PO</span><sub>4</sub><sup>3-</sup> in the existence of other potential interfering anions. Furthermore, the method was successfully applied to determine PO<sub>4</sub><sup>3-</sup> in eutrophicated water bodies (river and lake water) with good recoveries and without showing any significant matrix effect.</p></div>\",\"PeriodicalId\":11716,\"journal\":{\"name\":\"Environmental Nanotechnology, Monitoring and Management\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-02-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Nanotechnology, Monitoring and Management\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2215153223000168\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Environmental Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Nanotechnology, Monitoring and Management","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2215153223000168","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Environmental Science","Score":null,"Total":0}
Colorimetric detection of phosphate-based on iron complexing catechol-displacement assay in eutrophicated water bodies
A simple, sensitive, and inexpensive colorimetric indicator-displacement assay based on Fe3+-catechol complex has been developed to determine PO43-. The Fe3+ and catechol formed a greenish color complex, upon the addition of PO43- to the complex, it exhibited a visual color change immediately from greenish to colorless along with UV–vis spectral change. This change was mainly attributed to the high binding affinity of PO43- with Fe3+ by displacing catechol from the Fe3+-catechol complex. The developed sensor showed good sensitivity for the determination of PO43- in a wide linear range from 2 − 1000 µM with a limit of detection (LOD) of 0.5 µM which was found to be lower than the permissible limit. The sensor presented good selectivity towards the detection of PO43- in the existence of other potential interfering anions. Furthermore, the method was successfully applied to determine PO43- in eutrophicated water bodies (river and lake water) with good recoveries and without showing any significant matrix effect.
期刊介绍：
Environmental Nanotechnology, Monitoring and Management is a journal devoted to the publication of peer reviewed original research on environmental nanotechnologies, monitoring studies and management for water, soil , waste and human health samples. Critical review articles, short communications and scientific policy briefs are also welcome. The journal will include all environmental matrices except air. Nanomaterials were suggested as efficient cost-effective and environmental friendly alternative to existing treatment materials, from the standpoints of both resource conservation and environmental remediation. The journal aims to receive papers in the field of nanotechnology covering; Developments of new nanosorbents for: •Groundwater, drinking water and wastewater treatment •Remediation of contaminated sites •Assessment of novel nanotechnologies including sustainability and life cycle implications Monitoring and Management papers should cover the fields of: •Novel analytical methods applied to environmental and health samples •Fate and transport of pollutants in the environment •Case studies covering environmental monitoring and public health •Water and soil prevention and legislation •Industrial and hazardous waste- legislation, characterisation, management practices, minimization, treatment and disposal •Environmental management and remediation
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