Calix[4] based Hg(II) ion selective electrodes: A thermodynamic protocol to address the selectivity versus the hosting capacity paradigm in the selection of the carrier

Potentiometric Sensing

“…Danil de Namor et al synthesized and tested a calix [4]arene derivative as a Hg 2+selective ionophore. 148 The ISE with an optimized membrane composition was found to have a response slope of 29.1 mV/ decade and a detection limit of 60 nM. The fabricated sensor was applied for the analysis of a filling dental amalgam sample.…”

“…The fabricated sensor was tested in spiked water, dental amalgam, and fish tissue samples. Danil de Namor et al synthesized and tested a calix[4]­arene derivative as a Hg 2+ -selective ionophore . The ISE with an optimized membrane composition was found to have a response slope of 29.1 mV/decade and a detection limit of 60 nM.…”

A calix[4]arene derivative and its selective interaction with drugs (clofibric acid, diclofenac and aspirin)

“…We have recently reported 52 the following correlation for a carrier mediated mercury (II) ion selective electrode log Ks M(II) -log Ks Hg(II)= log k Hg(II), M(II) Eq.6…”

Design and Characterization of Electrochemical Sensor for the Determination of Mercury(II) Ion in Real Samples Based upon a New Schiff Base Derivative as an Ionophore

“…Many organic and inorganic compounds have been documented in the literature as ionophores for the synthesis of ion selective electrodes for the determination of Hg 2+ ion in various samples over the last three decades. Crown ether derivatives [19,20], polyvinyl pyridine [21], calix [4]pyrrole amide derivative [22], calixarene derivatives [23][24][25][26][27][28], thiol functionalized ionic liquid [29], amines [30,31], thioureas [25,32], and dithio derivatives [33,34] have all been used as ionophores for designing ISEs of Hg 2+ ions. It's worth mentioning that, some ionic liquids, e.g., 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF 4 ) [35], polypyrrole (PPy) [36], O,O -(2,2 -biphenylene)dithiophosphatepentyl (PenDTF) [37], 1methyl-2-butylthioimidazolium combined with bis(trifluoromethanesulphonyl) imide [29], dimethylglyoxime [38], and 2-mercaptobenzimidazol (2MBI) [39] are widely employed as ionophores in ISEs of Hg(II) ions.…”