Liquid membrane transport and silver selective electrode based on novel bis(3-pyridinecarboxylate) calix[4]arene as ionophore

Sensor for Silver(I) Ion Based on Schiff-base-p-tertbutylcalix[4]arene

“…The proposed ion selective electrode incorporates PVC as supporting material to give a pseudo-solid sensing membrane and bis(2-ethylhexyl)sebacate as plasticizing agent. The performance of this electrode which involves linear range, detection limit, response time, slope etc is in agreement and in many respects better than those reported in literature [8,9].…”

“…Further, the slope and linear range, detection limit of the proposed sensor are comparable and better in many respects than that sensor. From another comparison with Ag + ion selective electrode incorporating bis(3-pyridinecarboxylate)calix [4]arene as an ionophore [8] in which the Hg 2+ act as an strongest interferent with Log K Pot Ag,Hg >+1.0.,we find the sensitivity and selectivity of the Ag + selective electrode develops in this study are better than those of previous electrodes. The proposed sensor works well under laboratory conditions and can be successfully employed in the potentiometric tritrations of Ag + solutions with sodium chloride and the resulting titration curve is shown in Fig.…”

“…Because of these merits, the use of ISEs is increasing day by day in medicinal, enviornmental, agricultural and industrial field. During last three decades, a number of ion-selective electrodes with polymeric membranes have been reported [1][2][3][4][5][6][7][8][9][10]. Among the various ligands available for ion-selective electrodes such as crowns, podands, cryptands and spherands, the calixarenes met many of the requirements that an ionophore should satisfy for the use in ion-selective electrodes [11].…”

Mercury(II) Ion-Selective Electrodes Based on p-tert-Butyl Calix[4]crowns with Imine Units

“…19,20 Structural modifications of the calix and the binding sites and a variation in the cavity size have been mainly responsible for the use of calixarenes as selective sensing agents for ions other than sodium. [21][22][23][24][25][26][27] Calixarenes with soft donor atoms as binding sites have also been reported as ion-selective electrodes for heavymetal ions (silver, copper, lead). [28][29][30] Recently, silver and cesium ion-selective electrodes have been reported by our group.…”

Manganese(II) Ion-Selective Membrane Electrode Based on N-(2-picolinamido ethyl)-Picolinamide as Neutral Carrier

“…So, they form one of the most important groups of chemical sensors. [1][2][3][4][5][6][7][8][9][10] After extensive efforts some of the commercial sensors are available for alkali, alkaline earth metals, halides, nitrates, etc. Efforts are required to develop ion-selective electrodes for heavy metal ions, which are toxic in very low concentration.…”