Sami-Sabinsa Group QC Executive Interview Questions and Answers

Q1. Principle of hplc
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HPLC stands for High Performance Liquid Chromatography, a technique used to separate, identify, and quantify components in a mixture.
• HPLC works on the principle of separating components in a mixture based on their interaction with a stationary phase and a mobile phase.

• The stationary phase is typically a column packed with a solid material, while the mobile phase is a liquid solvent that carries the sample through the c...read more
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Q2. What is the GLP
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GLP stands for Good Laboratory Practice, a set of principles intended to ensure the quality and integrity of non-clinical laboratory studies.
• GLP is a quality system concerned with the organizational process and conditions under which non-clinical health and environmental safety studies are planned, performed, monitored, recorded, archived, and reported.

• It ensures that the data generated in such studies are reliable and...read more
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Q1. HPLC related all question
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Q1. What is R. S in HPLC?
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R. S in HPLC stands for Relative Standard Deviation.
• R. S is a measure of the precision or reproducibility of an HPLC method.

• It is calculated by dividing the standard deviation of peak areas by the average peak area and multiplying by 100.

• R. S is expressed as a percentage and indicates the variability of peak areas in replicate injections.

• A lower R. S value indicates higher precision and better method performance.

• For ex...read more
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Q2. What is assay by HPLC and ehy perform?
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Assay by HPLC is a technique used to separate, identify, and quantify components in a sample.
• HPLC stands for High-Performance Liquid Chromatography.

• It is commonly used in pharmaceutical and chemical industries for quality control purposes.

• Assay by HPLC involves injecting a sample into a high-pressure liquid chromatography system, where the components are separated based on their interactions with the stationary phase.

• T...read more
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Q3. What is resolution?
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Resolution refers to the ability to distinguish between two separate points or objects in an image or display.
• Resolution is a measure of the level of detail in an image or display.

• It is typically measured in terms of pixels or dots per inch (DPI).

• Higher resolution means more pixels or dots, resulting in a clearer and sharper image.

• Resolution is important in various fields such as photography, video production, and disp...read more
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Q4. How calibration of karl fisher?
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Calibration of Karl Fischer is a process to ensure accuracy and reliability of the moisture determination method.
• Calibration involves verifying the performance of the Karl Fischer titration system.

• It includes checking the accuracy of the reagents, electrodes, and the instrument itself.

• Calibration is typically done using standard solutions with known moisture content.

• The instrument readings are compared to the expected ...read more
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Q5. How calibration of HPLC?
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Calibration of HPLC involves verifying the accuracy and precision of the instrument by comparing the results obtained with known standards.
• Calibration of HPLC is essential to ensure accurate and reliable results.

• It involves preparing a series of standard solutions with known concentrations of analytes.

• These standard solutions are then injected into the HPLC system and the peak areas or heights are measured.

• The obtained...read more
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Q6. How prepared 1.0 N NaoH solution?
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To prepare a 1.0 N NaOH solution, dissolve 40.0 g of NaOH in enough water to make 1 liter of solution.
• To prepare a 1.0 N NaOH solution, you need to know the molar mass of NaOH (40.0 g/mol).

• Calculate the number of moles of NaOH required using the formula: moles = N x volume (in liters).

• For a 1.0 N solution, the number of moles of NaOH is equal to the desired concentration (1.0 mol/L).

• Weigh 40.0 g of NaOH using a balance...read more
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Q7. What is molecular weight of HNO3?
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The molecular weight of HNO3 is 63.01 g/mol.
• The molecular weight of a compound is the sum of the atomic weights of all the atoms in its chemical formula.

• For HNO3, the atomic weight of hydrogen (H) is 1.01 g/mol, nitrogen (N) is 14.01 g/mol, and oxygen (O) is 16.00 g/mol.

• Multiplying the atomic weights by the number of atoms in the formula (1 hydrogen, 1 nitrogen, and 3 oxygen) and summing them gives the molecular weight
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Q8. What is molecular weight of ACETIC ACID?
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The molecular weight of acetic acid is 60.052 g/mol.
• The molecular weight of a compound is the sum of the atomic weights of all the atoms in its chemical formula.

• The chemical formula of acetic acid is CH3COOH.

• The atomic weights of carbon (C), hydrogen (H), and oxygen (O) are 12.01 g/mol, 1.008 g/mol, and 16.00 g/mol respectively.

• Calculating the molecular weight of acetic acid: (12.01 * 2) + (1.008 * 4) + 16.00 + 1.008 =
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Q9. Did you now about T. L. C crometography?
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Q1. Why you leave your present company
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Q2. What is your expectations
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Q1. How many months notice period
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Microbiology, sterilization, culture techniques, disinfectant preparation, history, grams staining.

Q1. Basic microbiology, sterilization techniques, temperature, ph,
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Q1. They will ask nice quations about quality control department it's very nicely
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Q2. They will ask how much expected nicely CTC
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Q1. All basic question related to your resume and from guidelines
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Q1. Salary discussion and basic questions
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