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What else can I help you with?
Why is pH electrode cleansed after each use?
To avoid contamination in other experiments.
Why the burette and the pipette are each rinsed with distilled water and finally rinsed with some of the solution that will be measured or transferred?
These are conditions necessary to avoid contamination or any other modification of the reagents.
Pouring the reagents to its container?
Carefully measure and pour each reagent into its designated container to avoid spillage and cross-contamination. Use a clean and dry funnel if necessary to assist with transferring the reagents. Close the containers tightly after use to prevent evaporation or contamination.
How do you use measuring cup in a lab?
In a lab, a measuring cup is typically used to accurately measure and dispense liquid reagents or solvents. To use a measuring cup, simply pour the liquid into the cup up to the desired measurement line, ensuring the measurement is read at eye level for accuracy. It is important to handle the measuring cup carefully and avoid spillage to prevent contamination or inaccuracies in experiments.
What are the key steps for maintaining proper pipette technique during laboratory experiments?
To maintain proper pipette technique during laboratory experiments, follow these key steps: Calibrate the pipette regularly to ensure accuracy. Hold the pipette vertically while aspirating and dispensing liquids. Use the correct pipette tip size for the volume being measured. Release the plunger slowly and steadily to avoid splashing. Avoid touching the tip to prevent contamination. Practice good posture and hand positioning to minimize errors.
Why is wafting used during a scientific experiment?
Wafting method is used in scientific experiments to avoid inhaling the chemical.
How do you avoid cross-contamination?
use a linear workflow
What are the best practices for using DNA extraction kits in a laboratory setting?
The best practices for using DNA extraction kits in a laboratory setting include following the manufacturer's instructions carefully, maintaining a clean work area to prevent contamination, using proper safety equipment such as gloves and goggles, and storing reagents at the correct temperature. It is also important to keep track of samples and reagents to avoid mix-ups and ensure accurate results.
Why are you advised to work as closely as possible to the flame?
to avoid contamination
Why do we need different toothpicks to mix the blood and serum on slides 1 and 2?
Two toothpicks are used to avoid cross contamination.
What is the purpose of a weight paper when using a scale?
To avoid contamination of the instrument.
What is the precautions in oxidase test?
Here's some of the precautions: A time limit must be set for observing the colour change, a sterile wooden stick/platinum loop must be used, store the oxidase paper at ~4 degree Celcius and in a dry state. Also, place the test paper on a glass slide. Lastly, the test paper should be discarded to the disinfectant
