AVRA Laboratories Engineer Trainee Interview Questions and Answers

Protein estimation methods are used to quantify the amount of protein in a sample.

• Common protein estimation methods include Bradford assay, Lowry assay, and Bicinchoninic Acid (BCA) assay.

• Each method has its own advantages and limitations, such as sensitivity, accuracy, and interference from other substances.

• Protein estimation methods are essential in various fields like biochemistry, biotechnology, and food science.

Chromatography is a technique used to separate and analyze mixtures of chemicals based on their properties.

• Chromatography involves a stationary phase and a mobile phase.

• Different compounds in the mixture interact differently with the stationary phase, leading to separation.

• Examples of chromatography techniques include gas chromatography, liquid chromatography, and thin-layer chromatography.

Filter integrity testing is crucial for ensuring the effectiveness of filters in various industries.

• Bubble point testing

• Diffusion testing

• Pressure hold testing

• Forward flow testing

• Water intrusion testing