ion-selective electrode


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ion-selective electrode

A chemical transducer that yields a response to variations in the concentration of a given ion in solution.
See also: electrode
References in periodicals archive ?
ISE, indirect ion-selective electrodes; DSE, direction-selective electrodes.
Harmon, "A sensitive nitrate ion-selective electrode from a pencil lead.
Simple analytical tools such an ion-selective electrodes offer a direct measurement of active substances even in colored or turbid solution without previous extraction.
The use of ion-selective electrode (ISE) is recommended for the following reasons: It measures ionic activity hence it is specific.
Fluoride ion-selective electrodes respond to the fluoride concentration in a non-linear relationship following the Nernst Equation [18].
Four different methods were investigated to analyze biopolymer-bound cadmium, which is water soluble, using ion-selective electrode (ISE), dialysis, chelate disk cartridge, and ultrafiltration.
After measuring the pH in milk, the calcium activity of the milk was analyzed using a calcium ion-selective electrode (Calucium ionplus Combination ISE; Thermo Fisher Scientific Inc.Beverly, USA).
The chemical analyses performed using the fluoride ion-selective electrode showed that the mean amount + SD of fluoride uptake of teeth of group A was 1.55 [+ or -] 0.89 mg/l.
The fluoride analyses were performed using an Orion Bench top pH/ISE meter with a fluoride ion-selective electrode. Analytical-reagent grade chemicals (Merck, Darmstadt, Germany) were used without further purification.
The techniques and theory behind ion-selective electrodes will not be included here; the interested reader is referred to books and reviews on this subject (Koryta, 1972, 1977, 1984, 1986, 1988, 1990; Thomas, 1978; Covington, 1979; Ammann, 1986).
Inorganic iodide is measured in the 24-hour urine collection, in the serum, and in the saliva samples by the ion-selective electrode procedure as previously described.