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I applied via Recruitment Consultant and was interviewed in Jun 2021. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Feb 2021. There were 3 interview rounds.
I applied via Walk-in
posted on 23 Jan 2021
I was interviewed before Jan 2020.
posted on 24 Oct 2024
pH is a measure of acidity or alkalinity in a solution, ranging from 0 to 14.
pH stands for 'potential of hydrogen'
It measures the concentration of hydrogen ions in a solution
A pH of 7 is considered neutral, below 7 is acidic, and above 7 is alkaline
The pH scale is logarithmic, meaning each unit represents a tenfold difference in acidity or alkalinity
Examples: lemon juice has a pH of around 2, water has a pH of 7, and b
Titrations is a laboratory technique used to determine the concentration of a substance in a solution.
It involves adding a known amount of a solution of known concentration to a solution of unknown concentration until a reaction is complete.
The point at which the reaction is complete is called the endpoint.
The amount of the known solution added is used to calculate the concentration of the unknown solution.
Titrations c...
Acid and base are chemical substances that have opposite properties and can react with each other.
Acid: hydrochloric acid (HCl), sulfuric acid (H2SO4), acetic acid (CH3COOH)
Base: sodium hydroxide (NaOH), potassium hydroxide (KOH), calcium hydroxide (Ca(OH)2)
I applied via Walk-in and was interviewed in Nov 2023. There were 2 interview rounds.
A pH meter is a scientific instrument used to measure the acidity or alkalinity of a substance. Calibration ensures accurate readings.
pH meter measures the concentration of hydrogen ions in a solution
Calibration involves adjusting the pH meter to known standard solutions
Regular calibration ensures accurate readings over time
HPLC stands for High Performance Liquid Chromatography, which consists of a pump, injector, column, detector, and integrator.
HPLC involves a pump to push the liquid solvent through the system.
It includes an injector to introduce the sample into the mobile phase.
The column separates the components of the sample based on their interactions with the stationary phase.
A detector measures the amount of analyte in the eluent.
...
Buffers commonly used in HPLC include phosphate buffers, acetate buffers, and citrate buffers.
Phosphate buffers are commonly used in HPLC for separating acidic compounds.
Acetate buffers are used for separating basic compounds.
Citrate buffers are used for separating metal ions.
Other common buffers used in HPLC include ammonium acetate and ammonium formate.
HPLC calibration involves adjusting parameters to ensure accurate and reliable results.
Prepare standard solutions of known concentrations
Run the standard solutions through the HPLC system
Compare the results to expected values and adjust parameters as needed
Repeat the process until accurate and consistent results are obtained
I applied via Referral and was interviewed in Aug 2021. There were 2 interview rounds.
Distillation columns are classified based on their internal structure and operation.
Distillation columns can be classified as batch or continuous columns.
Common types of distillation columns include simple distillation columns, fractional distillation columns, and steam distillation columns.
The type of distillation column used depends on the specific separation requirements and properties of the components being separa
I applied via Referral and was interviewed in Dec 2020. There was 1 interview round.
pH is a measure of the acidity or alkalinity of a solution.
pH stands for 'potential of hydrogen'.
It is a logarithmic scale ranging from 0 to 14.
A pH of 7 is considered neutral, below 7 is acidic, and above 7 is alkaline.
pH is determined by the concentration of hydrogen ions in a solution.
Examples: Lemon juice has a pH of around 2, while baking soda has a pH of around 9.
PH represents the concentration of hydrogen ions in a sample.
PH is measured on a scale of 0-14, with 7 being neutral.
A lower PH indicates higher acidity, while a higher PH indicates higher alkalinity.
PH can be measured using a PH meter or through chemical indicators.
The PH of a sample can affect its chemical properties and reactions.
LOD stands for Limit of Detection. It is the lowest concentration of a substance that can be reliably detected.
LOD is used to determine the sensitivity of an analytical method.
It is usually expressed as a concentration or mass.
Water is a chemical compound composed of hydrogen and oxygen, while LOD is a term used in analytical chemistry.
LOD is important in environmental testing to determine the presence of contaminants ...
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