ARD Officer Interview Questions and Answers

Tailing factor is a measure of the efficiency of a chromatographic column.

• Tailing factor is calculated as the distance between the peak maximum and the baseline divided by twice the standard deviation of the peak.

• A tailing factor of 1 indicates a symmetrical peak, while values greater than 1 indicate tailing and less than 1 indicate fronting.

• Tailing factor is important in chromatography to assess the quality of separation and peak shape.

Buffers are solutions that resist changes in pH when small amounts of acid or base are added.

• Buffers are typically made up of a weak acid and its conjugate base, or a weak base and its conjugate acid

• Common examples of buffers include acetic acid and acetate ion, or ammonia and ammonium ion

• Buffers are important in maintaining stable pH levels in biological systems

Accuracy is the degree of closeness of a measured or calculated quantity to its actual (true) value.

• Accuracy is a measure of how close a measurement is to the true value.

• It is important in various fields such as science, engineering, and statistics.

• For example, in shooting sports, accuracy refers to how close a shot is to the target center.

• In data analysis, accuracy is used to evaluate the performance of a predictive model.

Robustness refers to the ability of a system to remain stable and functional under varying conditions or stress.

• Robustness is the ability of a system to handle unexpected inputs or disturbances without crashing or failing.

• It involves designing systems to be resilient and able to recover from errors or failures.

• For example, a robust computer program should be able to handle invalid user inputs without crashing.

• In engineering, robustness can refer to the ability of a structure ...read more