Froth flotation has been a key chemical process extensively used in the recovery of heavy metal ions (e.g. Cu2+) from contaminated water, while often criticized by secondary pollution added collectors, and less selectivity to specific since ion removal particles is independent post-step particle flotation. To facilitate industrial operation, “smart” with foams responsively stabilized after sele...

A new fluorescent probe P derived from naphthalimide bearing a pyridine group has been synthesized and characterized. The proposed probe P shows high selectivity and sensitivity to Cu2+ in aqueous media. Under optimized conditions, the linear response of P (2 μM) toward Cu2+ was 0.05-0.9 μM in ethanol-water solution (3:2, v:v, 50 mM HEPES, pH 7.4), and the detection limit was 0.03 μM.

Eu-coordinated semiconducting polymer nanoparticles (SPNs-Eu) were developed for bimodal analysis of copper(II) ions (Cu2+) over a wide dynamic range (μM to pM). In this sensing system, the first readout mode is based on fluorescence signal SPNs-Eu. A significant quenching fluorophore selective presence Cu2+ due aggregation The aggregations are caused by chelation with carboxylate groups SPNs-E...

in this research, a pvc membrane electrode for manganese (ii) ions based on n-(2-picolinamidoethyl)picolinamide as neutral carrier was prepared. the electrode exhibits a nemstian responseover mn(ii) concentration range of (1.0 x10-5 t01.0 x 10-1m) with a slope of 29.3±0.5 mv perdecade of concentration with a working ph range of 4.0-9.0. it has a fast response time (

In order to study the Cu(II) ion selective electrode, an optimized membrane was prepared by mixing of 30 mg of PVC powdered, 5 mg of considered ionophore, 60 mg of plasticizer and 5 mg of additive. The sensor showed a near Nernstian response for Cu(II) ions over a concentration range from 1.0×0-6 –1.0×0-2 M with a slope of 28.90.5 mV per concentration decade with a working pH range of 3.5-6.3. ...