enzyme electrode的意思|示意

Enzyme electrodes are one of the most commonly used electrochemical sensors, which are widely used in food, medicine, environmental protection and many other fields. An enzyme electrode is an electrochemical sensor that contains an immobilized enzyme, which can catalyze an analytical reaction in the presence of a substrate. This reaction changes the oxygen concentration in the solution and generates an electrical current, which can be measured through the electrodes.

Enzyme electrodes can be used to determine the concentration of substrates or products, the ratio of substrates or products, and the rate of their reaction. For example, it can be used to measure glucose, alcohol, lactic acid, cholesterol, etc. in food and medicine, to detect trace elements such as lead, cadmium, mercury, and arsenic in water, and to measure the activity of enzymes.

The working principle of an enzyme electrode is as follows: The reaction between the enzyme and the substrate generates a redox reaction, causing the surface potential to change, which can be detected through the electrode. The change in the potential can be used to calculate the concentration of the substrate and the rate of the reaction.

In conclusion, enzyme electrodes are widely used in many fields due to their high sensitivity and accuracy. With the development of new technologies, they can now be used to detect a variety of reactions in food, medicine, and environmental protection.