ConductScience Pipette Tips 20uL, Non-Filtered, Sterile (Pack of 20)
$28.00 per unit | 20 units per pack Bulk pricing: Pack of 20 at $560.00 ($28.00 per unit)
| Automation Level | manual |
Universal-fit 20µL pipette tips manufactured from medical-grade polypropylene for precision liquid handling in research applications. These sterile, non-filtered tips are DNase/RNase-free and non-pyrogenic, making them suitable for molecular biology, cell culture, and analytical chemistry workflows requiring contamination-free sample transfer.
The tips feature universal compatibility with standard 20µL micropipettes and can be autoclaved for sterilization when working with sterile protocols. Each tip is individually manufactured to ensure consistent volume delivery and reliable seal formation with pipette shafts.
How It Works
Pipette tips function as disposable volume measurement chambers that attach to the end of micropipettes to enable precise liquid handling. The tip forms an airtight seal with the pipette shaft, allowing the pipette's piston mechanism to create controlled vacuum and positive pressure for liquid aspiration and dispensing.
The medical-grade polypropylene construction provides chemical resistance and dimensional stability across typical laboratory temperature ranges. The smooth internal surface minimizes liquid retention and ensures complete sample discharge, while the universal-fit design maintains compatibility with standard pipette shaft geometries from major manufacturers.
Features & Benefits
Automation Level
- manual
Research Domain
- Analytical Chemistry
- Cell Biology
- Clinical Diagnostics
- Immunology
- Microbiology
- 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 |
|---|---|---|---|
| Material Construction | Medical-grade polypropylene | Standard polypropylene or polystyrene | Medical-grade formulation ensures biocompatibility and reduces leachable contamination risk |
| Sterility Assurance | Individual sterile packaging | Bulk non-sterile packaging | Eliminates need for additional sterilization steps in sterile protocols |
| Nuclease Contamination | DNase/RNase-free certified | Standard manufacturing without nuclease testing | Prevents degradation of nucleic acid samples in molecular biology applications |
| Pyrogenic Content | Non-pyrogenic formulation | Standard tips without endotoxin control | Suitable for cell culture applications sensitive to endotoxin contamination |
These tips offer medical-grade construction with sterility assurance and contamination-free handling for biological and pharmaceutical applications requiring higher quality standards than basic laboratory tips.
Practical Tips
Pre-wet tips with sample solution before final measurement to improve accuracy with viscous or surface-tension sensitive liquids.
Why: Reduces volume errors caused by liquid retention on tip walls during initial contact.
Store tip racks in clean, dry environment and avoid touching tip openings during handling.
Why: Prevents contamination introduction that could compromise sterile applications.
If tips do not fit securely, check pipette shaft for damage or residue buildup.
Why: Poor sealing leads to volume inaccuracy and potential sample contamination.
Always eject tips into appropriate waste containers and never touch used tip surfaces with hands.
Why: Prevents cross-contamination and reduces exposure to potentially hazardous samples.
Use forward pipetting technique for aqueous solutions and reverse pipetting for viscous or foaming samples.
Why: Optimizes volume accuracy based on sample physical properties and surface tension.
Verify pipette calibration regularly when using tips for quantitative applications.
Why: Ensures measurement accuracy as tip-to-pipette interface affects volumetric performance.
Setup Guide
What’s in the Box
- 96 sterile pipette tips per rack
- Individual tip packaging
- Product documentation
Warranty
ConductScience provides standard warranty coverage for manufacturing defects with technical support for proper use and handling protocols.
Compliance
References
Background reading relevant to this product:
Can these tips be used with electronic pipettes?
Yes, the universal-fit design is compatible with both manual and electronic micropipettes using standard 20µL shaft dimensions.
What is the maximum temperature for autoclaving?
Tips can be autoclaved at standard laboratory conditions (121°C, 15 psi) without dimensional changes or performance degradation.
Are the tips suitable for organic solvents?
The polypropylene construction provides resistance to most aqueous solutions and mild organic solvents; consult chemical compatibility charts for specific solvents.
How should unused tips be stored?
Store in original packaging at room temperature away from direct sunlight to maintain sterility and prevent contamination.
Can tips be reused after washing?
These are single-use disposable tips designed for optimal accuracy and contamination prevention; reuse is not recommended for research applications.
What is the volume accuracy specification?
Consult product datasheet for specific accuracy and precision tolerances at the 20µL nominal volume.
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