4.6 Article

A highly efficient PET switch on-off-on fluorescence receptor based on calix[4]arene for the selective recognition of Cd2+ and Sr2+

Journal

ANALYST
Volume 138, Issue 8, Pages 2244-2248

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c3an00091e

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Funding

  1. UGC, New Delhi

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A novel PET (photoinduced electron transfer) based substituted calix[4]arene fluoroionophore has been synthesized and used for the selective recognition of Cd2+ and Sr2+ by emission spectra. The detection limit of the synthesized receptor was found to be 0.94 pM for Cd2+ and 1.04 pM for Sr2+. Moreover, this probe has been applied to the recognition of Cd2+ and Sr2+ in waste water.

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