What is ion-selective electrode method?

Ion selective electrode (ISE) is an analytical technique used to determine the activity of ions in aqueous solution by measuring the electrical potential. It is a real-time measurement, which means it can monitor the change of activity of ion with time. It can determine both positively and negatively charged ions.

What is the principle of the ion selective methods?

Principle of ion-selective electrode (I.S.E.) consists of a thin membrane across which only the intended ion can be transported. The transport of ions from a high conc. to a low one through a selective binding with some sites within the membrane creates a potential difference.

What is the electrode method?

The diaphragm electrode method is widely used to measure dissolved oxygen levels. This method uses electrodes to detect the amount of oxygen as it passes through a highly oxygen permeable diaphragm.

What are the advantages of ion-selective electrode?

ISE has many advantages compared to other techniques, including: It is relatively inexpensive and easy to operate. It has wide concentration measurement range. As it measure the activity, instead of concentration, it is particularly useful in biological/medical application.

What is the most common type of ion-selective electrode?

Glass electrodes
Glass electrodes are the most commonly used ISE in chemistry disciplines.

How do you make an ion-selective electrode?

In order to construct an ion-selective electrode, we would add an inner reference solution to the other side of the membrane. This solution would contain a fixed concentration of the ion of interest, Li+ in this example.

What are the characteristics of ion-selective electrodes?

Explanation: Ion selective electrodes have a wide concentration range. It is highly selective to a particular ion. 8. Ion selective electrode are unaffected by colour or turbidity of the solution.

What is the most common type of ion selective electrode?

What are the application of ion-selective electrode?

Ion-selective electrodes (ISEs) are very similar in use to pH electrodes. They are used for chloride, potassium, calcium, carbon dioxide/carbonate, oxygen, and a variety of other ions. These methods are particularly suited for field analysis and online measurements.

Which of the following is not characteristics of ion-selective electrode?

Which of the following is not the characteristic of ion selective electrodes? Explanation: In glass membrane electrode, the glass containing 11% Na2O, 18% Al2O3, 71% SiO2 is highly sensitive to sodium ions. Glass electrodes can be used to measure various ions by changing the glass membrane composition.