Journal
MACROMOLECULES
Volume 41, Issue 20, Pages 7433-7439Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ma8013096
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Funding
- National Science Foundation of China [20674059]
- National Fundamental Key Research Program
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To develop sensitive and selective CN- chemosensors, a new imidazole-functionalized polyfluorene (P1) was designed and obtained conveniently, the fluorescence of which Could be completely quenched by Cu2+ ions at the concentration as low as 0.20 ppm in diluted solutions. By Utifizing the much higher stability constant of the complex of CN- and Cu2+, the quenched fluorescence of the solution of P1 by Cu2+ ions Could recover upon the addition of trace CN- anions, with the detection limit clown to 0.31 ppm, making P1 a novel, sensitive and selective cyanide probe.
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