Naari Pharma R&D Officer Interview Questions and Answers

HPLC stands for High Performance Liquid Chromatography. It is a technique used to separate, identify, and quantify components in a mixture.

• HPLC is based on the principle of separating components in a mixture using a liquid mobile phase and a solid stationary phase.

• It is commonly used in pharmaceutical, environmental, and food industries for analyzing compounds.

• HPLC instruments consist of a pump, injector, column, detec...read more

HPLC is a technique used in analytical chemistry to separate, identify, and quantify components in a mixture.

• HPLC stands for High-Performance Liquid Chromatography.

• It is a widely used technique in pharmaceutical, chemical, and food industries.

• HPLC utilizes a liquid mobile phase and a solid stationary phase to separate and analyze components in a sample.

• It is highly sensitive and can detect and quantify even trace amoun...read more

Acid is a substance that donates hydrogen ions (H+) and base is a substance that accepts hydrogen ions (H+).

• Acids have a pH less than 7 while bases have a pH greater than 7.

• Acids taste sour and can cause burns while bases taste bitter and feel slippery.

• Examples of acids include vinegar, lemon juice, and hydrochloric acid while examples of bases include baking soda, soap, and bleach.

pH is a measure of acidity or alkalinity of a solution. Environmental monitoring in microbiology is the process of monitoring the microbial contamination in the environment.

• pH is measured on a scale of 0-14, with 7 being neutral, below 7 acidic and above 7 alkaline

• Environmental monitoring in microbiology involves sampling and testing of air, water, surfaces, and personnel for microbial contamination

• The purpose of envir...read more

Air monitoring is the process of measuring and analyzing the quality of air. Gram+ ve and gram - ve refer to different types of bacteria based on their cell wall structure.

• Air monitoring involves collecting air samples and analyzing them for pollutants, allergens, and other contaminants.

• Gram+ ve bacteria have a thick peptidoglycan layer in their cell wall, while gram - ve bacteria have a thinner peptidoglycan layer.

• Gra...read more

Gram positive and negative are two types of bacteria based on their cell wall structure.

• Gram positive bacteria have a thick peptidoglycan layer in their cell wall.

• Examples of gram positive bacteria include Staphylococcus aureus and Streptococcus pneumoniae.

• Gram negative bacteria have a thin peptidoglycan layer and an outer membrane.

• Examples of gram negative bacteria include Escherichia coli and Pseudomonas aeruginosa.

UV/Vis spectrometry measures the absorption of light in the UV and visible range to identify and quantify substances.

• UV/Vis spectrometry is based on the principle that molecules absorb light in the UV and visible range.

• The range of UV light is typically 200-400 nm, while the range of visible light is 400-700 nm.

• UV/Vis spectrometry is commonly used in analytical chemistry to identify and quantify substances in a sample.

• ...read more

Distillation columns are classified based on their internal structure and operation.

• Distillation columns can be classified as batch or continuous columns.

• Common types of distillation columns include simple distillation columns, fractional distillation columns, and steam distillation columns.

• The type of distillation column used depends on the specific separation requirements and properties of the components being separa