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Zydus Lifesciences
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I applied via Approached by Company and was interviewed in Sep 2022. There were 2 interview rounds.
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I applied via Naukri.com and was interviewed before Oct 2020. There were 3 interview rounds.
Preparing buffers, differences between NP-HPLC and RP-HPLC, and uses of potentiometric titrations.
Buffers are prepared by mixing a weak acid and its conjugate base or a weak base and its conjugate acid.
NP-HPLC separates non-polar compounds while RP-HPLC separates polar compounds.
Potentiometric titrations are used to determine the concentration of an unknown solution by measuring the potential difference between two ele...
I applied via Referral and was interviewed in Aug 2021. There were 3 interview rounds.
I applied via Referral and was interviewed in Nov 2022. There were 4 interview rounds.
Current approaches on nitrosamine impurities
Analytical techniques such as LC-MS and GC-MS are commonly used to detect and quantify nitrosamine impurities in pharmaceuticals
Regulatory agencies have set limits on the acceptable levels of nitrosamine impurities in drugs
Manufacturers are required to conduct risk assessments and implement control measures to prevent nitrosamine contamination
Some common approaches to mitigat...
Quadrapoles are used in mass spectrometry to filter ions based on their mass-to-charge ratio.
Quadrapoles use radio frequency and direct current voltages to selectively filter ions.
They are composed of four parallel rods that create a quadrupole electric field.
Ions with a specific mass-to-charge ratio will oscillate within the field and pass through the filter.
Quadrapoles are commonly used in tandem mass spectrometry fo
Q trap system is a type of mass spectrometer that uses triple quadrupole technology with an added linear ion trap for enhanced sensitivity and selectivity.
Q trap system is used for targeted quantification and identification of small molecules in complex matrices.
It combines the benefits of triple quadrupole technology with an added linear ion trap for enhanced sensitivity and selectivity.
It allows for multiple reaction...
I applied via Company Website and was interviewed before Aug 2022. There were 4 interview rounds.
Customer support and troubleshooting.
ESI and APCI are ionization techniques used in mass spectrometry. Method development for impurities involves identification, quantification, and validation.
ESI (Electrospray Ionization) and APCI (Atmospheric Pressure Chemical Ionization) are ionization techniques used in mass spectrometry.
ESI is suitable for polar and ionic compounds, while APCI is suitable for nonpolar and less polar compounds.
ESI involves the formati...
I applied via Company Website and was interviewed in Sep 2024. There was 1 interview round.
Chromatography is a technique used to separate and analyze mixtures of chemicals based on their properties.
Chromatography involves passing a mixture through a stationary phase, which separates the components based on their interactions with the stationary phase and mobile phase.
Different types of chromatography include gas chromatography, liquid chromatography, and thin-layer chromatography.
It is widely used in various...
Analysis is the process of examining data or information to uncover insights, patterns, and trends.
Analysis involves breaking down complex information into smaller components for better understanding.
It helps in making informed decisions based on the findings.
Examples include financial analysis to assess company performance, data analysis to identify trends in customer behavior, and market analysis to understand indust
posted on 30 Oct 2024
I applied via LinkedIn and was interviewed before Oct 2023. There were 2 interview rounds.
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Senior Executive
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