Novel potentiometric sensors based on polysulfone immobilized metallothioneins as metal-ionophores

Fabrication of a silver (I) ion PVC-membrane sensor based on 2-{(E)-[(2-amino-5-nitrophenyl)imino]methyl}-4-methoxy phenol as a selective sensing material

“…Coated type electrodes are very easy to construct and handle, and offer much higher mechanical resistance, compared to their liquid membrane counterparts. As can be seen in Tables 2-6 in comparison to Table 1, the proposed electrodes are superior to reported silver ion selective electrodes in term of selectivity [1,12], linear range [5][6][7], detection limit [1,4,10,12], applicable pH range [3][4][5]8,11] and response time [2][3][4][5][6][7][8][9][10][11][12]. …”

“…The need for highly sensitive and selective determination of silver ions arises from its economic value and its long-term toxicity for humans and environment [1][2][3][4]. It is known that silver deactivates sulfhydryl enzymes and also combines with amine, imidazole and carboxyl groups [5].…”

Review on Methods for Determination of Metallothioneins in Aquatic Organisms

“…The reason for this is the lack of leaking processes due to the polymeric nature of the ionophore as well as the fact that the use of fully metallated metalloproteins ensures their resistance to air oxidation. These can cause lower detection limits, as a function of the incubation time, but contrarily show poor selectivity and require regeneration processes [28].…”

CHARACTERIZATION OF A NEW NEW Ag+ -SELECTIVE ELECTRODE BASED ON N3S5-THIAAZACROWN ETHER AS NEUTRAL IONOPHORE

“…In particularly, ion-selective electrodes (ISEs) is the most important target in analytical applications due to their good properties such as high selectivity, good precision, low cost and simplicity. [4][5][6][7][8] Since dithiacrown ethers were employed in the first neutral carrier-type Ag + -ISEs, which showed high Ag + -selectivity against alkali metal ions, 9 thiaethers have been a very important class of ionophores for Ag + -ISEs. [6][7][8][10][11][12] However, the applications of crown ethers are often subject to the difficulties of synthesis technique.…”