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Questions and Answers
What is the purpose of the UV-C germicidal lamp in the instrument?
What is the purpose of the UV-C germicidal lamp in the instrument?
- To provide lighting for experiments
- To facilitate the growth of microorganisms
- To prevent contamination by sterilizing the interior and contents (correct)
- To regulate the temperature inside the instrument
Why is it important to switch off the UV-C germicidal lamp when using the cabinet?
Why is it important to switch off the UV-C germicidal lamp when using the cabinet?
- To avoid skin and eye exposure to harmful ultraviolet light emissions (correct)
- To keep the interior warm
- To reduce electricity consumption
- To allow for natural light to enter the cabinet
What materials are typically sterilized using a hot air oven?
What materials are typically sterilized using a hot air oven?
- Wood
- Glassware, chemical powders, and metal equipment (correct)
- Rubber items
- Stainless steel utensils
How do autoclaves achieve disinfection and sterilization?
How do autoclaves achieve disinfection and sterilization?
What is the primary function of a beaker in a laboratory setting?
What is the primary function of a beaker in a laboratory setting?
What is the main function of Mini Rotary Shakers?
What is the main function of Mini Rotary Shakers?
Which equipment is best suited for transferring both liquids to narrow-headed flasks and for the filtration process?
Which equipment is best suited for transferring both liquids to narrow-headed flasks and for the filtration process?
What is the main purpose of a cooling centrifuge in a laboratory?
What is the main purpose of a cooling centrifuge in a laboratory?
Which equipment is specifically designed to provide product protection by creating a particle-free working environment?
Which equipment is specifically designed to provide product protection by creating a particle-free working environment?
What is the primary function of a washing bottle in the laboratory?
What is the primary function of a washing bottle in the laboratory?
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Study Notes
Laboratory Equipment and Their Functions
- UV-C germicidal lamps are used to disinfect and sterilize laboratory instruments, and it's essential to switch them off when using the cabinet to prevent accidental exposure to UV light.
Sterilization Methods
- Hot air ovens are used to sterilize materials such as glassware, instruments, and other heat-resistant items.
- Autoclaves achieve disinfection and sterilization through high-pressure steam, which kills microorganisms and spores.
Laboratory Vessels
- Beakers are used to mix, measure, and heat substances in a laboratory setting.
Laboratory Shakers
- Mini Rotary Shakers are used to mix and agitate small volumes of liquids, such as samples and solutions.
Laboratory Transfer Equipment
- Pipettes are best suited for transferring both liquids to narrow-headed flasks and for the filtration process.
Laboratory Centrifuges
- Cooling centrifuges are used to spin samples at high speeds while keeping them at a controlled temperature, typically between 2°C and 40°C, to preserve sample integrity.
Laboratory Environments
- Laminar flow cabinets are specifically designed to provide product protection by creating a particle-free working environment.
Laboratory Cleaning Equipment
- Washing bottles are used to rinse and clean laboratory equipment, such as pipettes and other instruments, with a stream of cleaning solution.
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