Describe a time when you made a pipetting error and what you did to fix it.

Your interviewer is looking for how well you respond to mistakes - we all make them sometimes! Since pipettes are one of the most used tools in the laboratory, you should understand how to use them properly and know the common mistakes. Additionally, you should be able to articulate how to avoid these common mistakes and minimize errors.

When pipetting, there are a few common errors that can happen. One of the most common is improperly aligning the pipette tip with the liquid. This can cause inaccuracies in the volume measurement. Another standard error is not properly depressing the plunger to the first stop, resulting in incorrect volume dispensing. It's also important to avoid touching the pipette tip to any surfaces, as this can contaminate the sample or alter the volume measurement. Lastly, it's important to regularly calibrate your pipette to ensure accurate measurements.