All-Solid-State Ag+-ISE Based on [2.2.2] p, p, p-Cyclophane

✍ Scribed by Johan Bobacka; Tanja Lahtinen; Johanna Nordman; Sanna Häggström; Kari Rissanen; Andrzej Lewenstam; Ari Ivaska

• Book ID: 101380179
• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 100 KB
• Volume: 13
• Category: Article
• ISSN: 1040-0397
• DOI: 10.1002/1521-4109(200105)13:8/9<723::aid-elan723>3.0.co;2-r

✦ Synopsis

All-solid-state ion-selective electrodes (ISEs) based on two ionophores with similar structure, i.e., [2.2.2] p,p,p-cyclophane and [2.2.2]m,p,p-cyclophane, were prepared and investigated. The ion-selective membranes were composed of the corresponding ionophore (1 %), potassium tetrakis(4-chlorophenyl)borate (0.5 %), 2-nitrophenyl octyl ether (65±66 %), and PVC (33 %). The ion-selective membrane was placed on top of a layer of the conducting polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), working as ion-to-electron transducer. The resulting all-solid-state ISEs were conditioned in 0.01 M AgNO 3 and investigated as Ag -ISEs. The results show that [2.2.2] p,p,pcyclophane is much more selective to Ag than [2.2.2]m,p,p-cyclophane.