{"title":"Highly Selective Fluorescent Sensor for Detection of Al3+ Based on Schiff-Base of 2-Hydroxy-1-Naphthaldehyde and 8-Aminoquinoline and Its Applications","authors":"Su-Qian Cai, Ke-Feng Zhang, Xiao-Hua Cai","doi":"10.1007/s10812-024-01768-y","DOIUrl":null,"url":null,"abstract":"<p>Aluminum is a widely distributed element and plays an indispensable role in our lives, but excessive intake of Al<sup>3+</sup> can cause potential harm to human health. Highly selective methods for the rapid detection of Al<sup>3+</sup> are urgently needed. Here, a novel \"turn on\" fluorescent probe L based on Schiff-base of 2-hydroxy-1-naphthaldehyde and 8-aminoquinoline was obtained in an excellent yield. Probe L presents significant properties such as rapid response, good stability, wide pH range, simple synthetic operation, and provides an efficient strategy for the highly selective detection of Al<sup>3+</sup> in an aqueous solution of DMSO/H<sub>2</sub>O (7:3, v:v). According to Job's curve and fluorescence titration, probe L with Al<sup>3+</sup> forms a 2:1 ratio of complex, and the lowest limit of detection is 3.23 × 10<sup>−8</sup> mol/L. The possible combination mode for probe L with Al<sup>3+</sup> was proposed by comparison with the changes of 1H NMR and FTIR spectra of L and its complex. In addition, the potent applicants for probe L were also investigated, and indicated that it could conveniently be made into a series of sensor strips and applied to rapidly detect trace Al<sup>3+</sup> in traditional Chinese medicine.</p>","PeriodicalId":609,"journal":{"name":"Journal of Applied Spectroscopy","volume":"91 3","pages":"659 - 668"},"PeriodicalIF":0.8000,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Spectroscopy","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10812-024-01768-y","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"SPECTROSCOPY","Score":null,"Total":0}
引用次数: 0
Abstract
Aluminum is a widely distributed element and plays an indispensable role in our lives, but excessive intake of Al3+ can cause potential harm to human health. Highly selective methods for the rapid detection of Al3+ are urgently needed. Here, a novel "turn on" fluorescent probe L based on Schiff-base of 2-hydroxy-1-naphthaldehyde and 8-aminoquinoline was obtained in an excellent yield. Probe L presents significant properties such as rapid response, good stability, wide pH range, simple synthetic operation, and provides an efficient strategy for the highly selective detection of Al3+ in an aqueous solution of DMSO/H2O (7:3, v:v). According to Job's curve and fluorescence titration, probe L with Al3+ forms a 2:1 ratio of complex, and the lowest limit of detection is 3.23 × 10−8 mol/L. The possible combination mode for probe L with Al3+ was proposed by comparison with the changes of 1H NMR and FTIR spectra of L and its complex. In addition, the potent applicants for probe L were also investigated, and indicated that it could conveniently be made into a series of sensor strips and applied to rapidly detect trace Al3+ in traditional Chinese medicine.
期刊介绍:
Journal of Applied Spectroscopy reports on many key applications of spectroscopy in chemistry, physics, metallurgy, and biology. An increasing number of papers focus on the theory of lasers, as well as the tremendous potential for the practical applications of lasers in numerous fields and industries.