A new resonance Rayleigh scattering method for phenol based on Cr(III) metal–organic framework probe and 4-aminoantipyrine reaction

• Published in: Microchemical journal 2023-07, Vol.190, p.108747, Article 108747
• Main Authors: Huang, Haoying, Shu, Yiyi, Bai, Hongyan, Zhi, Shengfu, Jiang, Zhiliang
• Format: Article
• Language: English
• Subjects: 4-Aminoantipyrine; CrMOF; Phenol; RRS-ET
• ISSN: 0026-265X; 1095-9149
• DOI: 10.1016/j.microc.2023.108747

[Display omitted] •Cr(III) metal organic framework as resonance Rayleigh scattering probe was studied.•The quinone imine and Cr(III) metal–organic framework taken place resonance Rayleigh scattering energy transfer strongly.•The resonance Rayleigh scattering energy transfer method for phenol was facile and sensitive. Stable Cr(III) metal–organic framework (CrMOF) was prepared and characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier infrared spectroscopy (FTIR). It was found that in the presence of potassium periodate (KIO4), phenol (PN) reacted with 4-aminoantipyrine (AAP) to form red quinone imine (QI) product, and a resonance Rayleigh scattering energy transfer (RRS-ET) occurred between the acceptor QI and the donor CrMOF. With the increase of PN concentration, RRS-ET increased, and the RRS intensity at 500 nm decreased. Based on this, a new and simple RRS-ET method for the detection of PN was established, with a detection range of 0.01–0.15 mmol/L and a detection limit (DL) of 0.005 mmol/L. The new RRS-ET method was applied to the determination of PN in water. The relative standard deviation (RSD) was 0.94–7.43%, and the recovery was 97–107%.