A pyrenyl linked calix[4]arene fluorescence probe for recognition of ferric and phosphate ions

A pyrenyl linked calix[4]arene fluroionophore has been synthesized and used as a ditopic chemosensing ensemble for Fe3+ and H2PO4- using emission spectra. The detection limit of the synthesized receptor was found to be 0.88 pM for Fe3+ and 1.11 pM for H2PO4-. Moreover, this probe has been applied for recognition of Fe3+ in blood serum and H2PO4- in waste water.