Construction of liquid membrane type histamine ion-selective electrode

Selective Membrane Electrode for Bromide Ion Based on Aza Pyrilium Ion Derivative as a new Ionophore.

A highly selective electrode for Bromide ion based on aza pyrilium derivative as an excellentionophore is described.The sensor exhibits a good linear response with a slope of ( 60±1 ) mV per decadeover the concentration range of ( 1×10-3 – 9×10-6 M ) , and a detection limit of ( 3×10-6 M ) of Bromideions .The electrode response is independent of pH in the range of(4.0 –9.5).Selectivity coeffici...

High-Sensitive and Selective Liquid Membrane Electrode for Direct Determination of Trace Amounts of Chromium

N-(2H-[1,2,4]thiadiazolo[2,3-a]pyridine-2-ylidene)benzamide was used as a selective sensing material in the PVC membrane to construction of a new chromium ion selective electrode. This liquid membrane electrode worked well with a Nernstian response of 19.7 ±0.4 mV decade-1 of Cr(III) in a wide dynamic concentration range of 8.0× 10-6-1.0×10-1 M. The electrode had relatively short response time ...

Selective Transport of Propylene by Silver Ion Complex Through an Immobilized Liquid Membrane

Effect of the phase volume ratio on the potential of a liquid-membrane ion-selective electrode.

Two-phase liquid system IA(w)|IX(o) comprising the interface between the aqueous solution (w) of uni-univalent electrolyte IA and an organic solvent solution (o) of a uni-univalent electrolyte IX with the common cation I(+) is considered as a simple model of a liquid-membrane ion-selective electrode (ISE). Taking into account the electroneutrality and mass balance conditions, the equilibrium Ga...

Determination of potassium ion concentration in serum using a highly selective liquid-membrane electrode.

The potassium-selective glass membranes like KAS,,_, and NAS,,_, are approx. IO times more sensitive to K+ than to Na +lp3. Since the concentration ratio of Na+/K+ in blood serum is around 35-40 and since there is at best a K+ over Naf selectivity in glass electrodes of IO, a separate measurement of the Na+ concentration is needed to correct the reading of the K+ sensor 4. Because of the depend...