Cd2+ transfer across water/1,2-dichloroethane microinterfaces facilitated by complex formation with 1,10-Phenanthroline

Electrochemical detection of Cd(ii) ions in complex matrices with nanopipets

“…20 Subsequently, the egress transfer of the ions or ionionophore complexes from the inner solution to the outer solution is controlled by linear diffusion; hence, a peak-shaped backward wave results. 13 However, in more recent studies, steady-state sigmoidal CVs for both ingress and egress transfer at micropipet and nanopipet ITIES have been reported 16,21 similar to our CV shown in Fig. 1.…”

A Newly Synthesized Tris(crown ether) Ionophore for Assisted Ion Transfer at NanoITIES Electrodes

“…We applied this tris(crown ether) ionophore for the amperometric detection of ionic species using nanoITIES electrodes, including Mg 2+ , Cu 2+ , Cd 2+ , Li + , and dopamine. While the detection of Mg 2+ , Cu 2+ , Cd 2+ , Li + , and dopamine facilitated by mono(crown ether) at ITIES electrodes have been reported, their amperometric detection facilitated by tris(crown ether) is presented here for the first time. We further measured the stoichiometric coefficients, Gibbs free energy, and binding constants for the ionic complexations with tris(crown ether), TriBCE , using theory developed by Girault and colleagues, and used by others .…”

Recent developments in electrochemistry at the interface between two immiscible electrolyte solutions for ion sensing

“…Different fabrication strategies to prepare these µITIES exist and have been reviewed elsewhere. 20,22 ITIES of microscopic dimensions are now routinely used under the form of a single µITIES [43][44][45][46][47][48]37,[49][50][51] ( Figure 1D) or of an array of µITIES [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70] ( Figure 1E) allowing to reach limits of detection in the range of tens of nM with an analysis time of a couple of minutes. Diffusion of ionic species at µITIES has shown an asymmetric profile.…”

“…31,32,86 This experimental set-up could be used for the calibration-free determination of ion Target analytes. The sensing of molecules of biological interest (small organic molecules, 52,53,28,87 carbohydrates, 88,29 and proteins 26,[54][55][56]30,[57][58][59][60] ), synthetic organic molecules (drug molecules, 61,43,[62][63][64]81,89 pollutants 44,45,27,42 ) and inorganic species (both cations 36,46,31,32,47,48,33,37,38,49,65,34,39,40,51,50,66,41 and anions 67,35,68 ) has been extensively studied in the 2010-2015 period covered in thi...…”