Unichem Laboratories Interview Questions, Process, and Tips

Precautions for UV analysis include wearing protective gear, calibrating equipment, and avoiding contamination.

• Wear appropriate protective gear such as gloves, goggles, and lab coat to prevent exposure to UV radiation.

• Calibrate UV equipment regularly to ensure accurate readings.

• Avoid contamination by cleaning all surfaces and equipment thoroughly before starting the analysis.

• Handle UV-sensitive samples carefully to pre...read more

KBr is used in IR analysis to prepare samples for analysis by creating a transparent pellet.

• KBr is used as a diluent to mix with the sample being analyzed

• It helps to create a transparent pellet which allows for accurate analysis of the sample

• KBr has a wide transmission range in the infrared spectrum

• It is chemically inert and does not interfere with the sample being analyzed

Equipment cleaning involves thorough disinfection and sterilization to prevent contamination.

• Use appropriate cleaning agents and disinfectants recommended for the specific equipment

• Follow manufacturer's instructions for cleaning and maintenance

• Regularly inspect equipment for any signs of wear or damage

• Implement proper storage practices to prevent contamination

• Train staff on proper cleaning procedures and protocols

Contamination can be classified into three main types: chemical, biological, and physical.

• Chemical contamination involves the presence of harmful chemicals in a substance or environment.

• Biological contamination refers to the presence of harmful microorganisms such as bacteria, viruses, or fungi.

• Physical contamination occurs when foreign objects like glass, metal, or plastic are present in a substance.