In amperometry, what property of the analyte is typically measured and related to its concentration?a)Massb)Densityc)Potentiald)CurrentCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

Current

Amperometry is a technique used in analytical chemistry to measure the concentration of an analyte. In this method, the property of the analyte that is typically measured and related to its concentration is the current.

Working Principle

In amperometry, the analyte undergoes an electrochemical reaction at an electrode surface. The current produced during this reaction is directly proportional to the concentration of the analyte in the solution. By measuring the current generated at a specific applied potential, the concentration of the analyte can be determined.

Calibration

To relate the measured current to the concentration of the analyte, a calibration curve is often constructed. This involves measuring the current at different known concentrations of the analyte to establish a linear relationship between current and concentration.

Application

Amperometry is commonly used in various fields such as environmental monitoring, pharmaceutical analysis, and clinical diagnostics. It offers high sensitivity, rapid response, and the ability to detect a wide range of analytes.

Conclusion

In conclusion, in amperometry, the property of the analyte that is typically measured and related to its concentration is the current. By measuring the current produced during an electrochemical reaction, the concentration of the analyte can be accurately determined.

Answer

In amperometry, the current that flows between the indicator electrode and a second electrode in the solution is typically measured and related to the concentration of the analyte.

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