Emcure Pharmaceuticals Chemist Quality Control Interview Questions and Answers

A buffer solution is a solution that resists changes in pH when small amounts of acid or base are added.

• Buffer solutions are made up of a weak acid and its conjugate base or a weak base and its conjugate acid.

• They are commonly used in chemical and biological experiments to maintain a stable pH.

• Examples of buffer solutions include acetic acid/sodium acetate buffer and phosphate buffer.

• Buffer capacity is the amount of ac...read more

HPLC principle is based on the separation of components in a mixture using high pressure to force the mixture through a column filled with a stationary phase.

• HPLC stands for High Performance Liquid Chromatography

• The stationary phase can be a solid or a liquid

• The mobile phase is the liquid that carries the sample through the column

• The separation is based on the differences in the components' interactions with the statio...read more

HPLC principle is based on the separation of components in a mixture using high pressure to force the mixture through a column filled with a stationary phase.

• HPLC stands for High Performance Liquid Chromatography

• It is a widely used analytical technique in chemistry and biochemistry

• The principle involves the use of a mobile phase (solvent) and a stationary phase (solid or liquid)

• The sample is injected into the mobile ph...read more

GC principal refers to the principle of gas chromatography, which involves separating and analyzing components of a mixture based on their affinity for a stationary phase and a mobile phase.

• Gas chromatography (GC) is a technique used to separate and analyze volatile compounds in a mixture.

• The principle of GC involves the use of a stationary phase (typically a solid or liquid) and a mobile phase (usually a gas) to separ...read more