Pipette

A pipette is a laboratory tool used to accurately measure and transfer small volumes of liquid. It typically consists of a narrow tube, often made of glass or plastic, with a bulb or mechanism for drawing up and dispensing the liquid. Pipettes come in various designs, including graduated pipettes for measuring different volumes, volumetric pipettes for precise single volumes, and micropipettes for handling extremely small amounts of liquid. Accuracy and precision are paramount in their use, and they are essential for a wide range of scientific applications, including chemistry, biology, and medicine.

Pipette meaning with examples

• In the chemistry lab, Sarah used a graduated pipette to carefully measure 5 milliliters of hydrochloric acid for a titration experiment. She meticulously controlled the flow to ensure the correct volume, crucial for accurate results. The pipette's markings helped her to achieve a highly precise measurement of the chemical solution.
• The biologist used a micropipette to transfer a tiny sample of DNA solution into a PCR tube. The fine tip of the pipette allowed for precise dispensing, vital for the success of the amplification process. She carefully pressed the plunger to aspirate and dispense the fluid with complete accuracy.
• During cell culture, Dr. Lee employed a sterile pipette to add nutrient-rich media to the growing cells. Maintaining a contamination-free environment required careful handling of the pipette. This procedure was an important step in maintaining the optimal growth conditions within the petri dishes.
• A technician used a volumetric pipette to transfer a specific volume of a reagent for a biochemical assay. The accuracy of the single-volume pipette ensured the assay's validity and reliable outcomes. He carefully held the pipette, ensuring the meniscus aligned perfectly with the etched line.