Issue 9, 2022

Construction of a colorimetric sensor array based on the coupling reaction to identify phenols

Abstract

Phenols are harmful to the human body and the environment. Since there are a variety of phenols in actual samples, this requires a sensor which possesses the ability to simultaneously distinguish them. Herein, we report a colorimetric sensor array, which uses two nanozymes (Fe–N–C nanozymes and Cu–N–C nanozymes) as electronic tongues for fingerprint identification of six phenols (2,4,6-trichlorophenol (2,4,6-Tri), 4-nitrophenol (P-np), phenol (Phe), 3-chlorophenol (3-CP), 4-chlorophenol (4-CP), and o-nitrophenol (O-np)) in the environment. Nanozymes catalyzed the reaction of hydrogen peroxide, different phenols and 4-aminoantipyrine (4-AAP) to produce different color variations. These signal changes as fingerprints encouraged us to develop a pattern recognition method for the identification of phenols by linear discriminant analysis (LDA). The six phenols at 50 nM have their own response patterns, respectively. Surprisingly, this sensor array had distinguished the six phenols in actual samples successfully.

Graphical abstract: Construction of a colorimetric sensor array based on the coupling reaction to identify phenols

Supplementary files

Article information

Article type
Paper
Submitted
07 Tsh 2021
Accepted
02 Phe 2022
First published
07 Phe 2022

Anal. Methods, 2022,14, 892-899

Construction of a colorimetric sensor array based on the coupling reaction to identify phenols

H. Zhong, Y. Xue, B. Liu, Z. Chen, K. Li and X. Zuo, Anal. Methods, 2022, 14, 892 DOI: 10.1039/D1AY02076E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements