期刊
DALTON TRANSACTIONS
卷 42, 期 46, 页码 16276-16278出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3dt52215f
关键词
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资金
- University of Rhode Island Foundation
- Gulf of Mexico Research Initiative
Herein we report a robust and easy method for detecting cesium metal ion (Cs+) in partially aqueous solutions using the fluorescence quenching of 2,4-bis[4-(N,N-dihydroxyethylamino)phenyl]squaraine. This squaraine dye was found to be both highly sensitive (low limits of detection) and selective (limited response to other metals) for cesium ion detection. The detection is likely based on the metal complexing to the dihydroxyethanolamine moieties, which disrupts the donor-acceptor-donor architecture and leads to efficient quenching.
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