A novel [1, 2, 4]triazolo[5,1-b]quinazoline derivative as a fluorescent probe for highly selective detection of Fe³⁺ ions

Abstract

A novel [1, 2, 4]triazolo[5,1-b]quinazoline fluorescent probe (VIi) for Fe³⁺ was developed, featuring with rapid response (< 5 s) and specific selectivity to Fe³⁺, low detection limit (1.3 × 10⁻⁵ M), as well as the ability to resist interference of chelating agent (e.g. EDTA). VIi-based fluorescent test paper can quickly recognize Fe³⁺ under irradiation at the wavelength of 365 nm. The fluorescence probe VIi has potential application prospects for the detection of Fe³⁺ in real circumstance.

Keywords:

• Fluorescent probe
• triazolo
• Fe³⁺ ions

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was financially supported by The Natural Science Foundation of Shandong Province (Grant No.ZR2020MB104).