Zydus Lifesciences
Indiservices Interview Questions and Answers
Q1. Trouble shooting of HPLC and GC.?
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
Q2. Trouble shooting of HPLC
HPLC troubleshooting involves identifying and resolving issues with the instrument or the analysis process.
Check for leaks in the system
Verify the column is properly installed and conditioned
Inspect the detector for any issues
Ensure the mobile phase is prepared correctly
Review the method parameters for accuracy
Calibrate the instrument regularly
Perform routine maintenance on the instrument
Q3. Types of HPLC and GC columns
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
Q4. Types of chromatography.?
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 mobile and stationary phases.
Ion exchange chromatography sepa...read more
Q5. IP USP weight variation
IP USP weight variation refers to the acceptable range of weight variation in a pharmaceutical product.
IP and USP are regulatory bodies that set standards for pharmaceutical products.
Weight variation refers to the acceptable range of weight difference among individual units of a product.
The acceptable range of weight variation depends on the type of product and its intended use.
For example, tablets may have a weight variation limit of +/- 5% while capsules may have a limit of...read more
Q6. Type of tablet
There are various types of tablets available in the market, including standard tablets, mini tablets, and convertible tablets.
Standard tablets are the most common type and come in various sizes.
Mini tablets are smaller in size and are more portable.
Convertible tablets can be used as both a tablet and a laptop.
Examples of popular tablets include the iPad, Samsung Galaxy Tab, and Microsoft Surface.
Q7. Types Of titration.?
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 precipitate between the analyte and titrant.
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