Fluorescein Based Three-channel Probe for the Selective and Sensitive Detection of CO
32- Ions in an Aqueous Environment and Real Water Samples.
J Fluoresc 2021;
31:1617-1625. [PMID:
34357494 DOI:
10.1007/s10895-021-02779-0]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/05/2021] [Indexed: 12/27/2022]
Abstract
We have constructed a novel fluorescein-based fluorescent chemosensor, FL-In, functionalised with an indole moiety and capable of sensing by both the optical "turn-on" and electrochemical detection of carbonate ions (CO32-) in aqueous media. The probe exhibits excellent selectivity and a low detection limit (0.27 µM) regarding carbonate ions by a possible coordination and hydrolysis reaction mechanism. The developed probe successfully detected CO32- ions in different samples of water. Also, in a simple filter paper experiment, we documented its ability to allow the monitoring of CO32- with the naked eye.
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