A cascade reaction-based switch-on fluorescent sensor for Ce(iv) ions in real samples

Xiaojing Lai; Ruixiang Wang; Jinhui Li; Guanyinsheng Qiu; Jin-Biao Liu

doi:10.1039/c9ra03776d

A cascade reaction-based switch-on fluorescent sensor for Ce(iv) ions in real samples

RSC Adv. 2019 Jul 16;9(38):22053-22056. doi: 10.1039/c9ra03776d. eCollection 2019 Jul 11.

Authors

Xiaojing Lai¹, Ruixiang Wang¹, Jinhui Li¹, Guanyinsheng Qiu², Jin-Biao Liu¹

Affiliations

¹ School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology 86 Hongqi Road Ganzhou 341000 China liujinbiao@jxust.edu.cn wrx9022@163.com.
² College of Biological, Chemical Science and Engineering, Jiaxing University 118 Jiahang Road Jiaxing 314001 China 11110220028@fudan.edu.cn.

Abstract

We herein report a cascade reaction-based switch-on fluorescence sensor for Ce(iv) ions. The mechanism is based on the ability of Ce(iv) ions to oxidize β-naphthol, which condenses with o-phenylenediamine to generate fluorescent benzo[a]phenazine. The sensor achieved a 200-fold fluorescence enhancement and was successfully applied to real sample detection.