Pipette tip filters are used in air displacement pipette systems to protect the pipettor, support reliable liquid handling and help reduce the risk of contamination between samples. A porous plastic filter inside the pipette tip allows air to move through the tip during aspiration and dispensing while helping prevent aerosols, airborne particles and excess liquid from entering the pipettor. SPC Technologies manufactures porous plastic pipette filters for laboratory and liquid handling applications where cleanliness, consistency and functional performance are critical.
Key Benefits
- Helps reduce aerosol bypass and contamination risk
- Supports cleaner liquid handling and improved sample integrity
- Provides hydrophobic resistance to excess fluid ingress
- Helps minimise sample carryover between pipetting operations
- Protects internal pipettor components from contamination
- Delivers repeatable airflow behaviour through a controlled porous structure
- Suitable for both manual and automated liquid handling systems
In air displacement pipetting, the filter must allow controlled air movement while also acting as a barrier against contamination. Porous plastic pipette filters are well suited to this application because they provide a stable, self-supporting structure with tightly controlled porosity. This allows the filter to perform as a reliable barrier element without compromising the airflow needed for accurate pipetting.
Hydrophobic pipette filters are particularly valuable where protection against liquid ingress is required. The hydrophobic nature of the material helps resist the passage of excess fluid once the tip is filled, which can help protect the pipettor from internal contamination and reduce maintenance requirements. At the same time, the porous structure helps reduce the transfer of aerosols and airborne particles into the pipettor body.
Pipette tip filters also help reduce the possibility of sample carryover and cross-contamination, especially in laboratory workflows involving sensitive or high-value samples. This makes them relevant in life sciences, analytical testing, clinical environments and high-throughput liquid handling systems where consistency and contamination control are essential.
SPC Technologies manufactures porous plastic filter elements in formats suitable for integration into pipette tips and related liquid handling assemblies. Material selection, pore size and filter dimensions can be tailored to the airflow, barrier and compatibility requirements of the application, helping customers identify a porous plastic solution suited to their liquid handling system.
Frequently asked questions
What does a pipette tip filter do?
A pipette tip filter helps protect the pipettor by allowing air movement during liquid handling while reducing the passage of aerosols, particles and excess liquid.
Why are pipette filters hydrophobic?
Hydrophobic behaviour helps resist fluid ingress once the tip is filled, reducing the risk of liquid entering the pipettor body.
How do pipette filters reduce contamination?
They help reduce aerosol transfer, particle ingress and sample carryover, which supports cleaner liquid handling and lower contamination risk.
Can pipette tip filters help prevent aerosol bypass?
Yes. A controlled porous filter structure can help reduce aerosol bypass while still supporting the airflow needed for air displacement pipetting.
What material is used for pipette filters?
Hydrophobic porous plastic materials are commonly used where repeatable airflow, liquid resistance and dimensional consistency are required.
Are porous plastic pipette filters suitable for automated liquid handling systems?
Yes. Porous plastic pipette filters can be used in both manual and automated liquid handling environments where repeatability and contamination control are important.
Related Applications
-
Chromatography and SPE Frits
Porous plastic chromatography and SPE frits for media support, particle retention and efficient flow in sample preparation systems.