Pipet Tips

Set store
Midland Scientific Inc.
Polypropylene Fiber
1000
Yes
Clear
No
Use pipet tips to speed up aspiration and dispense the correct volumes of liquids when pipetting. These tips also help reduce the risk of contamination, and some options feature aerosol barriers to deliver accurate and replicable results. Staples® stocks a variety of pipet tips plus other labware and scientific supplies that are ideal for use in laboratories, schools, and science departments.

Types of Pipet Tips
The correct tips ensure precision and maintain the integrity of reagents. Universal pipet tips fit standard diameter pipettes. Micro volume tips are ideal for aspirating low volumes of liquid when using small pipets for high accuracy.

Pipet-specific tips are made for particular brand-name pipettes. Some come with additional features, such as filters, to ensure purity. Sterile pipet tips are necessary for accurate results free of contamination. Non-sterile options are fit for day-to-day laboratory use with most chemicals.

To avoid leakage, choose options with a good tip cone match for the specific pipette. These fit snugly into the barrel to seal well, and they're also easy to remove. Many feature seals that prevent reagent from leaking and help ensure high accuracy.

Consider Volumes of Pipet Tips
The smallest options have a capacity of 10 microliters; use these to handle tiny amounts of liquid with high accuracy. The largest tips can hold up to 10,000 microliters, and they're suitable for transfers and high-volume measurements. Some come with graduations to enable users to ensure they are using consistent pipetting techniques.

Consider the Material
Materials determine the types of liquids that specific tips can handle. Tips made of siliconized polypropylene can handle corrosive chemicals and offer high accuracy, making them suitable for most biological and chemical reagents. They are molded with smooth surfaces for low surface adhesion to ensure they retain minimal amounts of reagent when dispensing.

Polypropylene fiber tips can withstand corrosive chemicals, and they also exhibit high thermal resistance. They are autoclavable at temperatures indicated by the manufacturer. After autoclaving, allow them to cool sufficiently and dry so they are uncontaminated for the next pipetting activity.

Does Pipet Tip Length Affect Accuracy?
Pipetting with long tips reduces the risk of contamination. Long tips are ideal for aspirating liquids at high levels of purity because chances of the pipets' exteriors coming in contact with the reagents is low. Short tips retain minimal amounts of the liquid because of their small surface areas, so they are appropriate when looking to transfer small amounts with high precision.

How Do You Ascertain Compatibility of Pipet Tips?
Typically, brands have compatibility charts for users to consult before buying tips. Compare tips against the size and model of the pipettors to find out whether they're compatible with the pipet tips.

How Are Pipet Tips Packaged?
These tips often come in packs that hold from 100 to 1,000 pieces. Racked tips are convenient to store and help ensure uninterrupted work flow. Color-coded options allow for easy project differentiation and quick matching of brand-name tips with compatible pipets. Sterile options feature individual wrapping to prevent contamination.

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