Colorimetric sensing of H2PO4− using a Pb2+ complex of a pyridylazo dye in aqueous solution

IF 2 4区工程技术 Q3 CHEMISTRY, APPLIED

Coloration Technology Pub Date : 2023-01-16 DOI:10.1111/cote.12671

Mahiro Shimizu, Shunichi Aikawa, Yasumasa Fukushima

{"title":"Colorimetric sensing of H2PO4− using a Pb2+ complex of a pyridylazo dye in aqueous solution","authors":"Mahiro Shimizu, Shunichi Aikawa, Yasumasa Fukushima","doi":"10.1111/cote.12671","DOIUrl":null,"url":null,"abstract":"This study develops a sensitive and selective colorimetric probe for the detection of dihydrogen phosphate (H2PO4−) based on a lead ion (Pb2+) complex of a commercially available pyridylazo dye (PAPS) in aqueous media under physiological conditions. The complex was made by adding Pb2+ to PAPS in a 1:1 stoichiometric ratio (PAPS-Pb2+), which was accompanied by the remarkable solution change from yellow to purple. The colorimetric sensing of H2PO4− over other anions with PAPS-Pb2+ occurred owing to the regeneration of original PAPS by the interaction of H2PO4− with Pb2+ in a 1:2 molar ratio. Moreover, the H2PO4− detection was less affected by the presence of other coexisting competitive anions. The colorimetric naked-eye behaviour of PAPS-Pb2+ rendered a useful and convenient probe for the detection of H2PO4− via the indicator displacement assay.","PeriodicalId":10502,"journal":{"name":"Coloration Technology","volume":"139 5","pages":"544-551"},"PeriodicalIF":2.0000,"publicationDate":"2023-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Coloration Technology","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/cote.12671","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

This study develops a sensitive and selective colorimetric probe for the detection of dihydrogen phosphate (H₂PO₄⁻) based on a lead ion (Pb²⁺) complex of a commercially available pyridylazo dye (PAPS) in aqueous media under physiological conditions. The complex was made by adding Pb²⁺ to PAPS in a 1:1 stoichiometric ratio (PAPS-Pb²⁺), which was accompanied by the remarkable solution change from yellow to purple. The colorimetric sensing of H₂PO₄⁻ over other anions with PAPS-Pb²⁺ occurred owing to the regeneration of original PAPS by the interaction of H₂PO₄⁻ with Pb²⁺ in a 1:2 molar ratio. Moreover, the H₂PO₄⁻ detection was less affected by the presence of other coexisting competitive anions. The colorimetric naked-eye behaviour of PAPS-Pb²⁺ rendered a useful and convenient probe for the detection of H₂PO₄⁻ via the indicator displacement assay.

查看原文本刊更多论文

水溶液中吡啶偶氮染料Pb2+配合物对H2PO4−的比色传感

本研究开发了一种灵敏、选择性的比色探针，用于在生理条件下检测水介质中的磷酸二氢（H2PO4−），该探针基于市售吡啶偶氮染料（PAPS）的铅离子（Pb2+）络合物。通过将Pb2+以1:1的化学计量比加入PAPS（PAPS-Pb2+）制备络合物，伴随着从黄色到紫色的显著溶液变化。由于H2PO4−与Pb2+以1:2摩尔比相互作用再生了原始PAPS，因此用PAPS-Pb2+对H2PO4–进行了比色传感。此外，H2PO4−检测受其他共存竞争阴离子存在的影响较小。PAPS-Pb2+的比色裸眼行为为通过指示剂置换法检测H2PO4-提供了一种有用而方便的探针。

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

Coloration Technology 工程技术-材料科学：纺织

CiteScore

3.60

自引率

11.10%

发文量

审稿时长

4 months

期刊介绍： The primary mission of Coloration Technology is to promote innovation and fundamental understanding in the science and technology of coloured materials by providing a medium for communication of peer-reviewed research papers of the highest quality. It is internationally recognised as a vehicle for the publication of theoretical and technological papers on the subjects allied to all aspects of coloration. Regular sections in the journal include reviews, original research and reports, feature articles, short communications and book reviews.