Lupin QC Chemist Interview Questions and Answers

Water content mechanism can be found through various methods and is important for various reasons.

• Water content can be measured through techniques such as gravimetric analysis, Karl Fischer titration, and moisture analyzers.

• Water content is important in industries such as food, pharmaceuticals, and cosmetics to ensure product quality and stability.

• Water content is also important in environmental studies to understand t...read more

Developing HPLC methods involves selecting appropriate columns and optimizing parameters.

• Choose a suitable column based on the analyte's properties and the separation goal.

• Optimize parameters such as mobile phase composition, flow rate, and temperature.

• Validate the method by assessing its selectivity, sensitivity, accuracy, and precision.

• Common column types include C18, C8, and phenyl.

• Other factors to consider include ...read more

Carbon loading in column refers to the amount of carbon used in the stationary phase of a chromatography column. Endcapping is a process to block the remaining silanol groups on the surface of the stationary phase.

• Carbon loading is typically expressed as a percentage of the total weight of the stationary phase.

• Higher carbon loading can improve the selectivity and retention of certain analytes.

• Endcapping is important to...read more

Acceptance limit of validations refers to the maximum allowable deviation from a standard or specification.

• Acceptance limit is determined by regulatory agencies or industry standards.

• It is used to ensure that products or processes meet quality standards.

• For example, the acceptance limit for a drug potency test may be +/- 5% of the labeled potency.

• Acceptance limits can vary depending on the type of validation being perf...read more