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A new thiocyanate selective PVC membrane electrode was prepared by using a tricoordinate dimethylaminobenzaldehyde Schiff base copper(II) complex as neutral carrier, which demonstrates highly selec...

5,10,15,20-Tetrakis(4-n-dodecylphenyl)porphyrin (C12TPPH2) as a neutral carrier of ion-selective electrodes exhibited excellent cation-sensing behavior for the Ag+ ion with high sensitivity and fas...

Calix[4]arene tetra(allyl ether) 1 was applied as a neutral carrier of silver ion sensors, which exhibited an excellent silver ion selectivity against sodium ion, while calix[4]arene tetra(allyl ester) 2 possesses only poor silver ion selectivity with severe sodium ion interference.

Remarkable effects of such additive salts as tetraphenylborate derivatives on low detection limit and slope sensitivity were found in electrochemical characteristics of sodium-selective neutral carrier based electrodes by using bis(12-crown-4).

Typical neutral carriers, valinomycin and a bis(12-crown-4) derivative have been encapsulated in sol-gel-derived glasses to afford a novel type of ion-sensing membranes based on neutral carriers for ion-sensitive field-effect transistors (ISFETs). The neutral-carrier-based sol-gel-derived glass membranes, when incorporated in the ion sensors, showed high sensitivity, high selectivities, and fast potential response.

3,3-Bis(8-quinolyloxymethyl)oxetane, which has been newly synthesized as a carrier in the cation transport through liquid membranes, exhibits extremely high Li+-selectivity. From the investigation of structural effect, introduction of 8-quinolyl terminal group, oxetane ring, and trimethylene chain to the structure of carrier is suggested to be important for excellent Li+-selectivity.