Back to Search
Start Over
A novel fluorescent probe for copper (II) ion based on rare earth polyoxometalate.
- Source :
-
Spectroscopy Letters . 2022, Vol. 55 Issue 10, p648-658. 11p. - Publication Year :
- 2022
-
Abstract
- A new strategy for the determination of Cu(II) ions was developed using K10H3[Eu(SiMo6W5O39)2]·28H2O. The polyoxometalate H4SiMo6W6O40 acts as a ligand to sensitize the europium ion to emit red fluorescence, and the fluorescence was quenched by the addition of Cu(II) ions. The luminescence of the central Eu3+ was quenched due to the inner filter effect (IFE) of Cu(II) to K10H3[Eu(SiMo6W5O39)2]·28H2O and the static burst. Therefore, K10H3[Eu(SiMo6W5O39)2]·28H2O can be used as a specific fluorescent probe for Cu2+ and it exhibited a very good linear response range for copper ions from 1 to 20 μM with detection limit of 0.13 µM. The probe was successfully applied to the determination of Cu(II) ions in clam samples with recoveries in the range of 90–98%. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00387010
- Volume :
- 55
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Spectroscopy Letters
- Publication Type :
- Academic Journal
- Accession number :
- 160566041
- Full Text :
- https://doi.org/10.1080/00387010.2022.2143819