What is an ion-selective electrode explain its principle and working?
What is an ion-selective electrode explain its principle and working?
The ion-selective electrode works based on the principle of a galvanic cell. ... The difference in potential between the electrode and the membrane depends on the activity of the specific ion in solution. The strength of the net charge measured is directly proportional to the concentration of the selected ion.Aug 12, 2013
What is calcium electrode?
The Calcium ISE electrode is intended for measuring calcium ion concentrations and activities in aqueous solutions. ... The PVC polymer matrix membrane of Ca ISE is ideal for use in laboratory environments. Calcium Ion Selective Electrodes can be used in aqueous solutions over a wide temperature range up to 40 °C.
Where are ion selective electrodes used?
Ion-selective electrodes are used in analytical chemistry and biochemical/biophysical research, where measurements of ionic concentration in an aqueous solution are required.
How do you find the concentration of calcium ions in a solution?
- Calculate the average titre of EDTA: average titre = (8.76 + 8.80 + 8.78) ÷ 3 = 8.78 mL = 8.78 x 10-3 L.
- Calculate the moles of EDTA in the average titre: moles(EDTA) = concentration (mol L-1) x volume (L) = 0.010 x 8.78 x 10-3 = 8.78 x 10-5 mol.
Which is ion-selective electrode?
Ion-selective electrodes (ISEs) are electrochemical ion sensors that convert the activity of a target ion into an electrical potential as the measurable signal.
What are the examples of ion-selective electrode?
Examples include the Fluoride electrode which uses a doped LaF3 crystal, and the Chloride electrode which uses silver chloride powder. Polymer Membrane Electrodes are based on special organic polymer membranes which contain various ion-exchange ionophores incorporated into an inert matrix.
Is pH electrode is an ion-selective electrode?
The most well-known and highly used ion-selective electrode is a pH electrode, which is sensitive toward the H+ ion. A desirable aspect of ion selective electrodes is their ease of use. Using pH electrodes as an example, after appropriate calibration, it is quite trivial to measure the pH of a solution.Jun 9, 2020
Can calcium be used as an electrode?
The Calcium Ion-Selective Electrode (ISE) can be used to measure the concentration of Calcium (Ca2+) in aqueous samples. Data from the Calcium ISE can give a good indication of hardness of water (as Ca2+). The concentration of Calcium is also used as an endpoint indicator in EDTA-Ca/Mg hardwater titrations.
How does a calcium electrode work?
The Vernier Calcium Ion-Selective Electrode (ISE) is a membrane-based electrode that measures a specific ion (Ca2+) in an aqueous solution. When the membrane of the electrode is in contact with a solution containing the specific ion, a voltage, dependent on the level of that ion in solution, develops at the membrane.
What are ion-selective electrodes types?
There are four main types of ion-selective membrane used in ion-selective electrodes (ISEs): glass, solid state, liquid based, and compound electrode.
What is the most common type of ion-selective electrode?
Ion-exchange resin membranes Ion-exchange resins are based on special organic polymer membranes which contain a specific ion-exchange substance (resin). This is the most widespread type of ion-specific electrode.
Which electrode is known as ion-selective electrode?
From Wikipedia, the free encyclopediaWikipedia, the free encyclopediaEnglish Wikipedia's URLs begin https://en.wikipedia.org/. That address on its own is redirected to the Main Page.https://en.wikipedia.org › wiki › Help:URLHelp:URL - Wikipedia. An ion-selective electrode (ISE), also known as a specific ion electrode (SIE), is a transducer (or sensor) that converts the activity of a specific ion dissolved in a solution into an electrical potential.