Abstract
AbstractA high‐efficiency dual‐functional on‐off‐on fluorescence probe: 2′–4′‐dihydroxydiphenyl‐8‐formyl‐7‐hydroxycoumarin hydrazine (L) based on photoelectron transfer mechanism (PET) was designed and synthesized, and its ion recognition characteristics were fully studied by spectroscopy. As expected, probe L shows highly sensitive to Cu2+ in EtOH‐HEPES (20 mM v/v, 80 : 20, pH =7.40) solution, and its detection limit up to 6.14 ×10−7 M. The stoichiometric ratio of L−Cu2+ complex was determined as 1 : 1 based on 1H NMR titration and ESI‐MS. Meanwhile, the resulted L−Cu2+ complex shows good selectivity for the phosphoric acid family anion (H2PO4−, HPO42− and PO43−), which denote probe L the dual‐function in rapid detection of Cu2+ and phosphate family's ions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
