Madhav KRG Interview Questions and Answers

The question is about the principles of various analytical instruments and reagents used in chemical analysis.

• HPLC instrument uses high pressure to separate and analyze components in a mixture

• PH is a measure of acidity or alkalinity of a solution

• GC is a technique used to separate and analyze volatile compounds

• LCMS combines liquid chromatography and mass spectrometry to identify and quantify compounds

• Karlfisher reagent is used to determine the water content in a sample

Solvents are substances that dissolve other substances to form a solution. Three common solvents are water, ethanol, and acetone.

• Solvents are used in various industries such as pharmaceuticals, paints, and cleaning products.

• Water is a universal solvent and is commonly used in many applications.

• Ethanol is a common solvent in the pharmaceutical industry and is used to extract active ingredients from plants.

• Acetone is a solvent commonly used in nail polish remover and industrial...read more

Lab chemicals are used for research, analysis, and production of various products in industries such as pharmaceuticals, biotechnology, and agriculture.

• Lab chemicals are used in research and development of new drugs and medicines.

• They are used in the production of fertilizers and pesticides in agriculture.

• Lab chemicals are used in the manufacturing of cosmetics and personal care products.

• They are used in the analysis of food and water samples for quality control purposes.

• Lab ...read more

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

• HPLC is a chromatographic technique used to separate compounds in a mixture based on their interactions with a stationary phase and a mobile phase.

• In laboratories, instruments such as pumps, detectors, columns, and autosamplers are used for HPLC analysis.

• Common solvents used in HPLC include water, acetonitrile, methanol, and tetrahydrofuran.

• The ...read more

HPLC and GC are used in various industries for analysis and separation of compounds.

• Pharmaceutical industry for drug analysis and quality control

• Food industry for testing food additives and contaminants

• Environmental industry for analyzing pollutants in water and air

• Chemical industry for quality control and research

• Petrochemical industry for analyzing petroleum products