Sun Pharmaceutical Industries Senior Analyst Interview Questions and Answers for Experienced

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

• Types of chromatography include gas chromatography, liquid chromatography, ion exchange chromatography, and affinity chromatography.

• Gas chromatography separates compounds based on their volatility and interactions with a stationary phase.

• Liquid chromatography separates compounds based on their affinity for the mob...read more

Troubleshooting of HPLC and GC involves identifying and resolving issues with the equipment to ensure accurate results.

• Perform regular maintenance checks on the equipment to prevent issues

• Calibrate the instruments regularly to maintain accuracy

• Check for leaks, blockages, or contamination in the system

• Verify the integrity of columns and detectors

• Review method parameters and conditions for any errors or inconsistencies

Types of titration include acid-base titration, redox titration, complexometric titration, and precipitation titration.

• Acid-base titration involves the neutralization of an acid with a base or vice versa.

• Redox titration involves a redox reaction between the analyte and titrant.

• Complexometric titration involves the formation of a complex between the analyte and titrant.

• Precipitation titration involves the formation of a

Types of HPLC columns include reverse phase, normal phase, ion exchange, size exclusion, and affinity. Types of GC columns include packed, capillary, and micro-packed columns.

• HPLC columns: reverse phase, normal phase, ion exchange, size exclusion, affinity

• GC columns: packed, capillary, micro-packed

UV, IR, KF, and polarimeter are analytical instruments used for different types of analysis based on principles of light absorption, emission, and rotation.

• UV (Ultraviolet) spectrophotometer measures the absorption of ultraviolet light by a sample to determine its concentration or purity.

• IR (Infrared) spectrophotometer measures the absorption of infrared light by a sample to identify functional groups in organic compou...read more

Calibration of analytical balance is essential for accurate measurements in analytical chemistry.

• Calibration involves comparing the readings of the balance to known weights.

• Regular calibration ensures accuracy and reliability of measurements.

• Adjustments may be needed if the balance readings deviate from the known weights.

• Calibration should be done using a proper calibration weight and following manufacturer's instructi...read more

PH range is 0-14. Calibration ensures accuracy by adjusting the PH meter to known standards.

• PH range is from 0 to 14, with 7 being neutral

• Acidic solutions have a PH below 7, while alkaline solutions have a PH above 7

• Calibration involves adjusting the PH meter using buffer solutions of known PH values

• Regular calibration ensures accurate PH measurements