Using of hydrogen ion-selective poly(vinyl chloride) membrane electrode based on calix[4]arene as thiocyanate ion-selective electrode

A Novel Poly(vinyl chloride) Matrix Membrane Sensor for Batch and Flow-Injection Determinations of Thiocyanate, Cyanide and Some Metal Ions

“…[14][15][16][17][18] Various anion carriers have been reported for the development of thiocyanate membrane sensors, including organo silver, 19 nickel, 20 copper, 21 mercury, 22 zinc, 23 cadmium, 24 manganese, 25 and palladium 26 complexes. Metal porphyrin, 27 metallophthalocyanine, 28 metal azamacrocyclic, 29 and calixarene 30 derivatives have also been used. Some of these sensors suffer from the disadvantages of poor selectivity, limited range of the linear response, and a long response time.…”

Experimental and PM6/SPARKLE Semiempirical Study of Interaction between 4‐Methoxyphenylcyanamide and Gadolinium(III) as a Fast Polymeric Membrane Sensor

“…Membrane solvents (plasticizers) are used to increase the plasticity of membrane, which is required to give a homogeneous organic phase [43]. The nature of the plasticizer strongly influences the sensitivity, selectivity and stability of ISEs [52,53]. Thus, a number of plasticizers (DBP, TBP, DOP, and o-NPOE) were added to the membrane and the response characteristics of the electrodes were measured.…”

A Novel Potentiometric Sensor for Thiocyanate Based on an Amide‐Linked Manganese Diporphyrin Xanthene

“…Anion-sensitive membrane electrodes based on ion exchangers such as lipophilic quaternary ammonium or phosphonium salts display classical Hofmeister behavior in which the membrane selectivity is controlled by the free energy of hydration of ions involved with a selectivity sequence: C1O [5]. Recently, much attention has been focused on new ion carriers possessing an anti-Hofmeister selectivity sequence in preparation of anion-selective electrodes including calix [4]arene [6], N,N'-bis-(benzaldehyde)-glycine metallic complexes of Cu(II) [7], bis(2-mercaptobenzoxazolato) mercury(II) and bis(2-pyridinethiolato) mercury(II) complexes [8], imidepyridine [9], benzoN 4 nickel(II) complexes [10], nickel and iron phthalocyanines [11], [Cu(L)](NO 3 ) 2 [12], bis-[(3-ferrocenyl)-(2-crotonic acid)] copper(II) complex [13] and bis-N,O-bidentate Schiff Base [14]. However, these electrodes have not turned out to be good systems as a result of long response time, narrow working concentration range or moderate selectivity.…”