ConductScience Filtered Pipette Tips 1250uL, Sterile (Pack of 10)
$55.00 per unit | 10 units per pack Bulk pricing: Pack of 10 at $550.00 ($55.00 per unit)
| Automation Level | manual |
The ConductScience Filtered Pipette Tips 1250uL are extended-length, sterile consumables designed for high-volume liquid handling applications requiring aerosol barrier protection. These universal-fit tips feature an integrated hydrophobic filter that prevents aerosol contamination of pipettes while maintaining accurate volume delivery. Manufactured from medical-grade polypropylene with certified DNase/RNase-free status, these tips support contamination-sensitive protocols in molecular biology, cell culture, and analytical chemistry workflows.
The 1250uL capacity and extended length design accommodates deep vessel access and large volume transfers while the integrated filter system provides bidirectional protection against aerosol carryover. The universal fit ensures compatibility with standard multichannel and single-channel pipettes from major manufacturers, supporting consistent performance across laboratory platforms.
How It Works
Filtered pipette tips incorporate a hydrophobic barrier membrane positioned between the tip opening and the pipette shaft connection. This microporous membrane allows air passage for proper pipetting function while blocking liquid aerosols and particles that could contaminate the pipette internals. The hydrophobic surface chemistry repels aqueous solutions, preventing liquid from reaching the pipette piston assembly even under high aspiration rates or when working with volatile solvents.
The extended-length design provides additional dead volume space below the filter, reducing the risk of filter wetting during maximum volume aspiration. The medical-grade polypropylene construction ensures chemical compatibility with most laboratory reagents while maintaining dimensional stability across typical laboratory temperature ranges. DNase and RNase treatment during manufacturing eliminates nucleic acid contamination that could interfere with molecular biology applications.
Volume accuracy is maintained through precise tip geometry that creates consistent liquid meniscus formation. The universal fit design incorporates standardized connection dimensions that interface with pipette shafts from major manufacturers, ensuring proper seal formation and accurate volume delivery across different pipette platforms.
Features & Benefits
Automation Level
- manual
Research Domain
- Analytical Chemistry
- Cell Biology
- Clinical Diagnostics
- Microbiology
- Molecular Biology
- Pharmaceutical QC
Weight
- 4.41 kg
Dimensions
- L: 22.6 mm
- W: 18.8 mm
- H: 15.1 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Volume Capacity | 1250uL extended-length design | Standard models typically offer 1000uL or 1200uL capacity | Higher capacity reduces pipetting cycles for large volume transfers and bulk reagent preparation. |
| Aerosol Protection | Integrated hydrophobic barrier filter | Basic tips provide no aerosol barrier protection | Prevents cross-contamination and protects expensive pipette internals from damage. |
| Sterility Assurance | DNase/RNase-free certified with sterile packaging | Some alternatives lack nuclease-free certification | Eliminates risk of nucleic acid degradation in molecular biology applications. |
| Tip Length | Extended-length for deep vessel access | Standard length tips may require tilting containers | Maintains ergonomic pipetting position when working with deep tubes and flasks. |
These filtered tips combine large volume capacity with aerosol barrier protection and extended length design for versatile laboratory use. The universal fit design and medical-grade construction support demanding applications requiring sterility and contamination control.
Practical Tips
Replace tips immediately if filter membrane shows any signs of liquid penetration or discoloration.
Why: Compromised filters cannot provide aerosol protection and may affect pipetting accuracy.
Use steady, controlled aspiration rates to prevent filter saturation with volatile compounds.
Why: Rapid aspiration can overwhelm the filter membrane and reduce protection effectiveness.
Store opened packages in dry conditions with resealed packaging to maintain tip sterility.
Why: Moisture exposure can compromise sterility and affect filter membrane performance.
Dispose of used tips in appropriate biohazard containers according to institutional waste management protocols.
Why: Single-use tips may contain biological or chemical contaminants requiring proper disposal.
Pre-wet tips when working with viscous solutions to improve volume accuracy and reduce carryover.
Why: Viscous solutions can create film formation that affects subsequent volume measurements.
If pipetting becomes difficult, check for tip blockage rather than increasing aspiration force.
Why: Excessive force can damage the filter membrane or cause incomplete volume aspiration.
Setup Guide
What’s in the Box
- Sterile filtered pipette tips 1250uL (quantity varies by pack size)
- Individual sterile packaging
- Product documentation (typical)
Warranty
ConductScience provides standard manufacturer warranty covering material defects and sterility guarantee through expiration date with technical support for proper usage guidelines.
Compliance
References
Background reading relevant to this product:
What is the maximum aspiration rate before filter wetting occurs?
Consult product datasheet for specific flow rate limitations. Generally, standard pipetting speeds are compatible, but rapid aspiration of volatile or low-surface-tension solutions should be avoided.
Are these tips compatible with organic solvents?
Polypropylene construction provides compatibility with most organic solvents, but consult chemical compatibility charts for specific solvent interactions and potential filter membrane effects.
How can I verify the filter remains functional during use?
Monitor the filter membrane visually - it should remain white and dry. Any liquid penetration or color change indicates filter compromise and requires tip replacement.
What is the dead volume below the filter?
Extended-length design provides additional space to minimize filter contact, but specific dead volume measurements should be obtained from technical specifications.
Can these tips be autoclaved if sterility is compromised?
No, these are single-use consumables. The filter membrane and sterility certification cannot be restored through autoclaving or other sterilization methods.
What is the shelf life of sterile packaging?
Consult product labeling for expiration date. Store in dry conditions at room temperature away from direct sunlight to maintain packaging integrity.
Are low-retention coatings applied to reduce sample carryover?
Standard polypropylene surface properties provide good release characteristics for most aqueous solutions. Specific surface treatments are not indicated in the standard specification.
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