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A simple and effective fluorescent sensor bearing pyridine units was designed and synthesized. The sensor can detect Zn2+ with high selectivity accompanied by a distinct fluorescence turn-on response, inducing the… Click to show full abstract
A simple and effective fluorescent sensor bearing pyridine units was designed and synthesized. The sensor can detect Zn2+ with high selectivity accompanied by a distinct fluorescence turn-on response, inducing the fluorescent color markedly changed from darkness to bright green. The limit of detection (LOD) was calculated as 8.56 × 10-9 M with a good linearity (R = 0.95943). In addition, the chelate of sensor with Zn2+ can further recognize H2PO4-/HSO4- with notable fluorescence quenching behaviors over other anions and the LODs were as low as 3.44 × 10-6 M (R = 0.99762) and 3.84 × 10-6 M (R = 0.99315), respectively.
Journal Title: Analytical biochemistry
Year Published: 2018
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