Kaspr Global Outsourcing Interview Questions and Answers

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 concentration range over which the method is accurate and...read more

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

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 toluene solutions.

• Noise is checked using a blank solution.

• Ca...read more

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 optical communication, MIR is used in spectroscopy and thermal i...read more

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 is important to consider when using sunscreen or other pr...read more