Perylenemonoimide-Based Colorimetric Probe with High Contrast for Naked-Eye Detection of Fluoride Ions.
Anal Chem
; 94(33): 11470-11475, 2022 08 23.
Article
in En
| MEDLINE
| ID: mdl-35960192
ABSTRACT
Excessive fluoride ions (F-) in drinking water are harmful to the environment and human health. However, most reported probes of F- can only detect fluorocarbons rather than aqueous F-. Herein, a colorimetric and fluorescent probe (PMI-OH) based on perylenemonoimide is designed and synthesized for the detection of aqueous F-, with high sensitivity, good selectivity, and reversibility. The F- causes deprotonation of PMI-OH, leading to a significant red shift of 222 nm (from 520 to 742 nm) of the absorption band. Upon the addition of fluorocarbons, the fluorescence intensities of PMI-OH show good linearity against the concentrations of F-, realizing the quantitative detection of fluorocarbons with a limit of detection as low as 0.495 µM. Finally, PMI-OH is applied to detect F- in drinking water. The color of PMI-OH solution shows remarkable response from pink to green when the concentrations of F- exceed the upper limit set by the World Health Organization (WHO), realizing rapid and naked-eye detection of aqueous F-.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Drinking Water
/
Fluorocarbons
Type of study:
Diagnostic_studies
Limits:
Humans
Language:
En
Journal:
Anal Chem
Year:
2022
Document type:
Article
Publication country:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA