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Alcoa stands for Aluminum Company of America.
Alcoa is a leading producer of aluminum and alumina.
It was founded in 1888 as the Pittsburgh Reduction Company.
Alcoa has operations in over 10 countries worldwide.
The company changed its name to Alcoa in 1907.
Alcoa is known for its innovation in the aluminum industry.
I applied via campus placement at PSG College of Arts & Science, Coimbatore and was interviewed in May 2022. There were 3 interview rounds.
I applied via Recruitment Consulltant and was interviewed in Apr 2022. There was 1 interview round.
Dr. Reddy's interview questions for designations
I applied via Walk-in and was interviewed in Aug 2021. There were 3 interview rounds.
Analytical method validations and development
Analytical method validation is the process of ensuring that a method is accurate, precise, and reliable.
It involves testing the method under different conditions and comparing the results to a reference standard.
Method development is the process of creating a new analytical method or improving an existing one.
It involves selecting appropriate instrumentation, optimizing par...
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I applied via Walk-in and was interviewed before Sep 2021. There were 2 interview rounds.
There are several parameters for HPLC calibration.
The parameters include accuracy, precision, linearity, range, limit of detection, and limit of quantification.
Accuracy refers to how close the measured value is to the true value.
Precision refers to the reproducibility of results.
Linearity refers to the ability of the method to produce results that are proportional to the concentration of the analyte.
Range refers to the...
Calibration parameters of UV Vis Spectrophotometer
Calibration parameters include wavelength accuracy, photometric accuracy, stray light, resolution, and noise.
Wavelength accuracy is checked using holmium oxide or didymium glass filters.
Photometric accuracy is checked using neutral density filters.
Stray light is checked using potassium dichromate or sodium iodide solutions.
Resolution is checked using holmium oxide or to...
Weight difference of two samples after ignition of ROI
ROI stands for Residue on Ignition
The weight difference is due to the loss of volatile substances during ignition
The weight loss can be used to calculate the percentage of volatile substances in the sample
This technique is commonly used in pharmaceutical and food industries
The IR region range refers to the range of wavelengths in the infrared region of the electromagnetic spectrum.
The IR region range typically spans from approximately 700 nanometers to 1 millimeter.
It is divided into three main regions: near-infrared (NIR), mid-infrared (MIR), and far-infrared (FIR).
Each region has different applications and characteristics. For example, NIR is commonly used in remote controls and optica...
UV range refers to the range of ultraviolet radiation wavelengths.
UV range is typically divided into three categories: UVA (320-400 nm), UVB (280-320 nm), and UVC (100-280 nm).
UVA is responsible for skin aging and wrinkling, while UVB causes sunburn and skin cancer.
UVC is absorbed by the ozone layer and does not reach the Earth's surface.
UV radiation can also be used for disinfection and sterilization purposes.
UV range...
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ALCOA and ALCOA+ are principles used in data integrity to ensure data is Attributable, Legible, Contemporaneous, Original, and Accurate.
ALCOA stands for Attributable, Legible, Contemporaneous, Original, and Accurate.
ALCOA+ includes the original ALCOA principles and adds the concepts of Complete, Consistent, Enduring, and Available.
These principles are commonly used in industries such as pharmaceuticals, healthcare, and...
posted on 26 Jan 2025
I was interviewed in Jul 2024.
posted on 16 Nov 2024
I applied via Company Website and was interviewed in May 2024. There was 1 interview round.
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