Full Answer
What is the capacity of a pipette?
The pipette capacity is 3 milliliters. Weight 3.52 ounces. Dimensions 9 x 2 x 6 inches. The pipettes are made of high quality plastic. Plastic pipettes are a tube with a closed reservoir at one end used to fill the pipette and an elongated, tapered tip at the other. The pipette can be used to measure and transfer liquid.
How to use pipettes correctly?
They must be handled with care and cleaned properly. Use pipettes to accurately measure small volumes of liquid. Pipettes function as tiny straws that suck up a liquid into the vacuum of its internal holding space. If you wish to extract a very precise, yet small, volume of liquid, a pipette is the tool you’ll likely use. [1]
What is the size of a 3ML pipette?
These disposable, transparent transfer pipettes are made from food-grade plastic and hold 3ml of liquid, and are 15cm in length. These disposable, transparent transfer pipettes are made from food-grade plastic and hold 3ml of liquid, and are 15cm in length. . Shop products from small business brands sold in Amazon’s store.
What is a pipette made of?
The pipettes are made of high quality plastic. Plastic pipettes are a tube with a closed reservoir at one end used to fill the pipette and an elongated, tapered tip at the other. The pipette can be used to measure and transfer liquid. Use it in cosmetics, scientific experiments, making soap and more.
Understanding Pipettes
Adjustment - altering the pipette so that the dispensed volume is within the specifications.
Air Displacement Pipettes
Air Displacement Pipette, used for standard pipetting applications, is highly accurate.
Factors affecting the accuracy of Air Displacement Pipettes
Temperature The most important factor in pipetting accuracy is the liquid temperature. The figure below shows the change in volume when the liquid has a different temperature than the pipette and air. If the temperature of the liquid, pipette and air is the same, the accuracy is not significantly affected.
Positive Displacement Pipette
Positive Displacement Pipette, is used for applications like PCR and other DNA amplification techniques. The micro-syringe tips used in positive displacement pipettes are disposable. This helps to avoid sample-to-sample cross-contamination (also known as sample carry-over), and contamination due to the aerosol effect.
General guidelines and Pipetting techniques
Check your pipette at the beginning of your working day for dust and dirt on the outside. If needed, wipe with 70% ethanol.
Reverse Pipetting technique
The reverse technique is used for pipetting solutions with a high viscosity or a tendency to foam. Reverse pipetting is only possible with air displacement pipettes
Repetitive Pipetting technique
This technique is intended for repeated pipetting of the same volume. Can only be used with electronic and repeator pipettes.
Calibration
Pipettes undergo preventive maintenance (PM) and calibrated to manufacturer specifications.
Calibration PLUS
In an environmentally controlled facility, Pipettes undergo verification first, and then preventive.
