Til Healthcare Quality Assurance Officer Interview Questions and Answers

Known impurity is a substance that is identified and characterized, while unknown impurity is a substance present in a sample but not yet identified.

• Known impurity is typically a degradation product or a starting material impurity that is identified and quantified.

• Unknown impurity is a substance that is present in a sample but its structure and properties are not yet known.

• Known impurities are usually controlled and mo...read more

DT apparatus works by measuring the dissolution rate of a drug in a specific medium.

• DT apparatus typically consists of a vessel containing the medium, a temperature control system, and a rotating paddle or basket to agitate the medium.

• The drug sample is placed in the vessel and the apparatus is set to the desired temperature and agitation speed.

• Samples are taken at regular intervals to measure the amount of drug dissol...read more