A simple colorimetric and ratiometric fluoride ion probe with large color change

Abstract

Two colorimetric and ratiometric fluoride ion probes SHJ-1 and SHJ-2 based on the acylhydrazone skeleton have been developed.

TDDFT Study on the ESIPT Properties of 2-(2′-Hydroxyphenyl)-Benzothiazole and Sensing Mechanism of a Derived Fluorescent Probe for Fluoride Ion

“…So far, many conventional methods have been used to detect F − , such as ion-selective electrode [13], ion chromatography [14] and the colorimetric method [15], but these methods have the disadvantages of having complicated handling of samples, expensive instruments and long detection time. On the contrary, the fluorescent probe method [16][17][18][19] has the advantages of short response time, real-time monitoring, low cost and strong naked-eye detection ability. Depending on the intermolecular forces, the sensing mechanisms of F − recognition can be classified into four categories: (1) hydrogen bond interactions [20][21][22];…”