In situ determination of cadmium and lead in water environment based on microelectrode array combined PLS with local optimum method

Sensing and extraction of hazardous metals by di-phosphonates of heterocycles: a combined experimental and theoretical study

“…It was shown that for Cd(II) complexes with the Py-PO-iPr ligand, the anion (Cl − or NO 3 − ) affects the structure of the complex, providing crystallization either as a dimer or as a monomer, respectively. On the one hand, Pb(II) is more prone to the formation of complexes with a large coordination number (8,9), compared to Cd(II). This is confirmed by a review of all structures containing cadmium and lead with coordination numbers between 5 and 9 in The Cambridge Structural Database (see Fig.…”

“…8 Nowadays new selective sensors for Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Pb(II) determination have been widely developed and tested. [9][10][11][12] Potentiometric sensors based on plasticized polymeric membranes are one of the most popular research directions in this domain as these sensors provide broadly tunable analytical characteristics through changes in the chemical structure of membrane-active ligands. 13 The ion-ligand interaction with an ionophore in a polymeric sensor membrane has much in common with the interaction of metal ions with extractants in the solvent extraction process, so the employment of the ligands studied in liquidliquid extraction as ionophores looks natural.…”

“…8 Nowadays new selective sensors for Co( ii ), Ni( ii ), Cu( ii ), Zn( ii ), Cd( ii ), and Pb( ii ) determination have been widely developed and tested. 9–12 Potentiometric sensors based on plasticized polymeric membranes are one of the most popular research directions in this domain as these sensors provide broadly tunable analytical characteristics through changes in the chemical structure of membrane-active ligands. 13…”