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I applied via LinkedIn and was interviewed before Apr 2023. There was 1 interview round.
HPLC is used for separating compounds in liquid phase, while GC is used for separating compounds in gas phase.
HPLC stands for High Performance Liquid Chromatography, while GC stands for Gas Chromatography.
HPLC is used for analyzing compounds that are heat-sensitive or non-volatile, while GC is used for volatile compounds.
HPLC typically uses a liquid mobile phase and a solid stationary phase, while GC uses a gas mobile ...
Organic reaction mechanisms involve step-by-step processes by which organic molecules undergo chemical transformations.
Nucleophilic substitution: involves the attack of a nucleophile on an electrophilic carbon atom, leading to the substitution of one group with another.
Electrophilic addition: occurs when an electrophile reacts with a nucleophile to form a new bond, typically seen in alkene reactions.
Elimination: involv...
NMR spectroscopy is suitable for organic reactions due to its ability to provide detailed structural information.
NMR spectroscopy is commonly used to analyze organic compounds and reactions.
It can provide information on the connectivity of atoms, functional groups, and stereochemistry.
Examples of NMR techniques include 1H-NMR and 13C-NMR.
NMR spectroscopy is non-destructive and can be used to monitor reactions in real-t
The IR value for carbonyl compounds is typically around 1700-1750 cm^-1, while other functional groups have characteristic IR values.
Carbonyl compounds typically show a strong absorption band around 1700-1750 cm^-1 in the IR spectrum.
Alcohols usually have a broad peak around 3200-3600 cm^-1 due to O-H stretching.
Amines exhibit N-H stretching vibrations around 3300-3500 cm^-1.
Alkenes show C=C stretching vibrations aroun...
I applied via Referral and was interviewed in Apr 2022. There was 1 interview round.
Chromatography is a technique used to separate and analyze mixtures of chemicals.
Types include gas chromatography, liquid chromatography, ion exchange chromatography, and affinity chromatography.
Gas chromatography separates volatile compounds based on their boiling points.
Liquid chromatography separates compounds based on their interactions with a stationary phase and a mobile phase.
Ion exchange chromatography separate...
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posted on 3 May 2022
I applied via Approached by Company and was interviewed in Nov 2021. There were 4 interview rounds.
To become a technical leader in software engineering, contributing to innovative projects and mentoring junior engineers.
To continuously enhance my technical skills and stay updated with the latest technologies.
To lead and deliver complex software projects successfully.
To mentor and guide junior engineers, fostering their growth and development.
To contribute to the development of innovative and impactful software solut...
Secure cloud deployments can be implemented through various measures such as encryption, access control, and regular security audits.
Implement encryption for data at rest and in transit
Use access control mechanisms to restrict unauthorized access
Regularly conduct security audits to identify and address vulnerabilities
Implement multi-factor authentication for added security
Ensure compliance with industry standards and r...
Check server logs, review code, test endpoints, and verify database connections.
Check server logs for error messages
Review code for syntax errors or logical mistakes
Test endpoints using tools like Postman or cURL
Verify database connections and credentials
Check for any recent changes or updates
Consider scaling issues or server overload
Consult with team members or experts if necessary
My next career goal is to become a technical lead and mentor junior engineers.
I want to take on more leadership responsibilities and guide a team towards success.
I plan to enhance my skills in project management and communication.
I aim to contribute to the growth and development of the organization.
I aspire to continuously learn and stay updated with the latest technologies and industry trends.
I applied via Company Website and was interviewed before Nov 2020. There was 1 interview round.
Water solid compound is ice.
Water solid compound is formed when water freezes.
The solid form of water is known as ice.
Ice has a crystalline structure and a lower density than liquid water.
Ice can exist in different forms, such as ice cubes, snowflakes, or glaciers.
Compounds that can be analyzed using HPLC, GC, and MC.
Polar compounds are suitable for HPLC analysis.
Non-polar compounds are suitable for GC analysis.
Compounds that are thermally stable can be analyzed using MC.
Examples of compounds suitable for all three techniques include caffeine and aspirin.
I applied via Campus Placement and was interviewed before Apr 2021. There were 3 interview rounds.
All question base on the technical ....
I applied via Company Website and was interviewed in Mar 2020. There were 3 interview rounds.
SAP activity refers to the use of SAP software for business operations and management.
SAP activity involves using SAP software for various business functions such as finance, human resources, supply chain management, and customer relationship management.
It helps organizations streamline their processes, improve efficiency, and make data-driven decisions.
Examples of SAP activity include creating financial reports, manag...
pH activity refers to the measurement of acidity or alkalinity of a solution.
pH activity is measured on a scale of 0-14, with 7 being neutral, below 7 being acidic, and above 7 being alkaline
It is important in various fields such as chemistry, biology, and environmental science
For example, pH activity is used to determine the acidity of soil for agriculture, the pH of water for aquatic life, and the pH of blood for med
The pH value decreases when acid is added and increases when alkali is added.
Acids release hydrogen ions (H+) when dissolved in water, which increases the concentration of H+ ions and lowers the pH value.
Alkalis release hydroxide ions (OH-) when dissolved in water, which decreases the concentration of H+ ions and raises the pH value.
The pH scale ranges from 0 to 14, with 7 being neutral. Values below 7 are acidic, and ...
Chemical reaction between sodium and chlorine
Sodium (Na) reacts with chlorine (Cl) to form sodium chloride (NaCl)
The reaction is exothermic and releases energy in the form of heat and light
The balanced chemical equation is 2Na + Cl2 -> 2NaCl
I applied via Walk-in and was interviewed before Jan 2020. There was 1 interview round.
Mass spectrometry is a technique used to identify and quantify molecules based on their mass-to-charge ratio.
Electrospray ionization (ESI)
Matrix-assisted laser desorption/ionization (MALDI)
Gas chromatography-mass spectrometry (GC-MS)
Liquid chromatography-mass spectrometry (LC-MS)
Time-of-flight mass spectrometry (TOF-MS)
UV spectrometry is a technique that measures the absorption or transmission of ultraviolet light by a sample.
UV spectrometry is based on the principle that different molecules absorb UV light at specific wavelengths.
It is commonly used in analytical chemistry to determine the concentration of a substance in a sample.
UV spectrometry can be used to analyze the purity of a compound or identify unknown substances.
The instr...
To prepare 0.1 N HCl and NaOH, you need to calculate the required amount of the respective chemicals and dilute them in water.
Calculate the molar mass of HCl and NaOH
Determine the volume of solution needed
Use the formula: Normality (N) = (Number of equivalents / Volume of solution in liters)
For 0.1 N HCl, calculate the number of equivalents of HCl and dilute it to the desired volume
For NaOH, calculate the number of equ...
Quality assurance is the process of ensuring that products or services meet the desired level of quality.
It involves establishing standards and procedures to ensure that products or services meet those standards.
It includes monitoring and evaluating the quality of products or services to identify areas for improvement.
It also involves taking corrective action when necessary to address quality issues.
Examples include co...
Recall definitions
Recall: the ability to retrieve information from memory
Definition: a statement that explains the meaning of a word or phrase
Research: the systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions
Associate: a person who works with others towards a common goal
Hypothesis: a proposed explanation for a phenomenon
Experiment: a scientific procedure...
The type of HPLC used depends on the specific research requirements and objectives.
There are several types of HPLC systems available, including reverse phase, normal phase, ion exchange, size exclusion, and affinity chromatography.
The choice of HPLC system depends on the properties of the analyte, such as polarity, size, charge, and affinity.
For example, reverse phase HPLC is commonly used for the separation of nonpola...
UV detectors and HPLC detectors are used in research to analyze and quantify substances.
UV detectors are commonly used in UV-visible spectroscopy to measure the absorption of light by a sample at different wavelengths.
HPLC detectors are used in high-performance liquid chromatography to detect and quantify the components of a mixture.
Common types of UV detectors include diode array detectors (DAD) and photodiode array d...
Matrix in MALDI MS system is a substance used to assist in ionization of the sample for analysis.
Matrix is a substance that absorbs energy from the laser and transfers it to the sample, causing ionization.
The choice of matrix depends on the type of sample being analyzed.
Common matrices include alpha-cyano-4-hydroxycinnamic acid (CHCA) and sinapinic acid (SA).
posted on 7 Aug 2020
I applied via Naukri.com and was interviewed in Feb 2020. There were 3 interview rounds.
Water content mechanism can be found through various methods and is important for various reasons.
Water content can be measured through techniques such as gravimetric analysis, Karl Fischer titration, and moisture analyzers.
Water content is important in industries such as food, pharmaceuticals, and cosmetics to ensure product quality and stability.
Water content is also important in environmental studies to understand t...
Developing HPLC methods involves selecting appropriate columns and optimizing parameters.
Choose a suitable column based on the analyte's properties and the separation goal.
Optimize parameters such as mobile phase composition, flow rate, and temperature.
Validate the method by assessing its selectivity, sensitivity, accuracy, and precision.
Common column types include C18, C8, and phenyl.
Other factors to consider include ...
Carbon loading in column refers to the amount of carbon used in the stationary phase of a chromatography column. Endcapping is a process to block the remaining silanol groups on the surface of the stationary phase.
Carbon loading is typically expressed as a percentage of the total weight of the stationary phase.
Higher carbon loading can improve the selectivity and retention of certain analytes.
Endcapping is important to...
posted on 16 Aug 2021
I applied via Company Website and was interviewed in Feb 2021. There were 5 interview rounds.
I applied via Naukri.com and was interviewed in Sep 2018. There were 5 interview rounds.
Seeking new challenges and opportunities for growth.
Desire for new challenges and opportunities for growth
Seeking a more stimulating work environment
Looking to expand skill set and knowledge
Company restructuring or downsizing
Relocation to a new area
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