Biophore India Pharmaceuticals Interview Questions, Process, and Tips

ALS and headspace are two different techniques used in gas chromatography (GC).

• ALS (Automatic Liquid Sampler) is a technique used to introduce liquid samples into a GC system.

• Headspace is a technique used to analyze volatile compounds in solid or liquid samples without directly injecting them into the GC system.

• ALS involves injecting a small volume of liquid sample directly into the GC system for analysis.

• Headspace inv...read more

High pressure gradient and low pressure gradient in HPLC differ in terms of the pressure applied to the mobile phase.

• High pressure gradient involves applying a higher pressure to the mobile phase, resulting in faster elution and shorter run times.

• Low pressure gradient involves applying a lower pressure to the mobile phase, resulting in slower elution and longer run times.

• High pressure gradient is often used for rapid s...read more

The maximum temperature maintained in GC headspace incubation period varies depending on the specific experiment or analysis being conducted.

• The maximum temperature can range from room temperature (around 25°C) to higher temperatures, such as 200°C or even higher.

• The temperature is typically set based on the requirements of the sample being analyzed and the desired outcome of the experiment.

• For example, in some cases, ...read more

GC and HPLC are both analytical techniques used in chemistry, but they differ in their principles and applications.

• GC stands for Gas Chromatography, while HPLC stands for High-Performance Liquid Chromatography.

• GC separates and analyzes volatile compounds based on their vaporization and partitioning between a stationary phase and a mobile gas phase.

• HPLC separates and analyzes non-volatile compounds based on their partit...read more