Determination of Monensin by Voltammetry at the Interface between Two Immiscible Electrolyte Solutions

Interface Between Two Immiscible Liquid Electrolytes: A Review

“…Therefore, antibiotics with appropriate modification will be transported across the ITIES. One of the early work demonstrated determination of monensin, useful in synthesis of this compound for cattle feed [50][51][52][53][54] , or nigericin 55,56 . Valinomycin, which forms very selective complex with potassium, was studied on such ITIES [57][58][59][60][61][62][63] as were β-lactam antibiotics and their derivatives 64 , the channel former alamecithin 65 .…”

“…It is not without interest that antibiotics can be also synthesized, using a two phase method, on a liquidliquid interface 66,67 The interface is also a natural site where polar and in particular large molecules can be absorbed. Phospoholipids [68][69][70][71] , phosphatidylcholine 21,[72][73][74] , acetylcholine [75][76][77] , cellular protein annexin 78 , and proteins (bovine serum albumin), were all studied.…”

Electrolysis at the interface of two immiscible electrolyte solutions: Determination of ionophores

“…The most interesting biological aspect of electrolysis at the ITIES is facilitated ion transfer [20,[25][26][27][28][29][30][31]. Analogously to the case for biological membranes and their models, it occurs in the presence of mobile ionophores such as valinomycin [20,25,26], nonactin and its homologues [27], monensin [28,29], nigericin [30] and crown ethers [27,31] in the organic phase.…”

Synergistic barrier effect of phosphatidylcholine and phosphatidic acid on the ion transfer across a polarized liquid–liquid interface and its electrochemical stability

“…The voltammetry of ion transfer at an interface between two immiscible electrolyte solutions, VITIES, was applied to investigate the electrochemical properties of a phospholipid monolayer adsorbed at the interface [4][5][6][7][8][9][10][11][12][13][14]. Following the pioneering works on the blocking of ion transfer across the phospholipids membrane [15,16], the present authors demonstrated voltammetrically a large decrease of the ion permeability across the phospholipid monolayer adsorbed at a water-organic (W-O) solution interface, and its potential dependence [17].…”