A novel sensitive and selective chemosensor for fluorescent detection of Zn2+ in cosmetics creams based on a covalent post functionalized Al-MOF.

Autor: Kamel, Rasha M., Shahat, Ahmed, Anwar, Zeinab M., El-Kady, Hamdy A., Kilany, Esraa M.
Předmět:
Zdroj: New Journal of Chemistry; 5/14/2021, Vol. 45 Issue 18, p8054-8063, 10p
Abstrakt: A material was fabricated based on the Schiff base reaction to achieve covalent attachment of NH2-MIL-53(Al) and the 3-formylsalicylic acid ligand (3-FSA) for fluorimetric detection of Zn2+ ions based on inhibition and destruction of C=N isomerization and ESIPT. The low limit of detection and limit of quantification were calculated at optimum conditions. The selectivity of the 3-FSA sensor was achieved against some interfering ions. The new sensor was applied for the determination of Zn2+ ions in cosmetic cream products and the obtained results were validated through comparison with ICP-OES. The data indicated that the 3-FSA sensor provided a sensitive, selective, fast, direct and efficient determination of Zn2+ ions with good reproducibility and reversibility. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index