Fluorescence detection of malachite green and cations (Cr³⁺, Fe³⁺ and Cu²⁺) by a europium-based coordination polymer.

ABSTRACT: Due to remarkable fluorescence characteristics, lanthanide coordination polymers (CP) have been widely employed in fluorescence detection, but it is rarely reported that they act as multifunctional luminescent probes dedicated to detecting malachite green (MG) and various metal ions. A europium-based CP fluorescent probe, Eu(PDCA)₂(H₂O)₆ (PDCA = 2,6-pyridinedicarboxylic acid), has been synthesized and exhibited excellent recognition ability for malachite green and metal cations (Cr³⁺, Fe³⁺ and Cu²⁺) among 11 metal cations, 13 anions and six other compounds. The recognition was achieved by fluorescence quenching when MG, Cr³⁺, Fe³⁺ and Cu²⁺ were added to a suspension of Eu(PDCA)₂(H<

SUBMITTER: Kong YJ 

PROVIDER: S-EPMC8984937 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature