ConductScience Transfer Pipettes, 1mL, Sterile (Bulk 20-Pack)
$32.00 per unit | 20 units per pack Bulk pricing: Bulk 20-Pack at $640.00 ($32.00 per unit)
| Automation Level | manual |
1mL sterile transfer pipettes manufactured from low-density polyethylene (LDPE) with graduated volume markings for accurate liquid handling in laboratory applications. Each pipette is individually wrapped to maintain sterility and prevent cross-contamination during storage and use.
These disposable transfer pipettes feature a bulb design that allows for precise liquid aspiration and dispensing without the need for mechanical pipetting devices. The graduated markings enable approximate volume measurements, while the sterile packaging makes them suitable for cell culture, microbiological work, and other applications requiring aseptic technique.
How It Works
Transfer pipettes operate on a simple bulb-compression mechanism that creates controlled suction for liquid aspiration. When the flexible bulb is compressed and the tip inserted into liquid, releasing pressure creates negative pressure that draws liquid into the pipette body through the graduated stem.
The LDPE construction provides chemical compatibility with most aqueous solutions while maintaining flexibility for repeated bulb compression. Graduated markings along the stem allow for approximate volume measurement, though these are indicative rather than precision measurements. The individually wrapped sterile packaging prevents microbial contamination until the point of use.
Features & Benefits
Automation Level
- manual
Research Domain
- Analytical Chemistry
- Cell Biology
- Clinical Diagnostics
- Environmental Monitoring
- Microbiology
- Pharmaceutical QC
Weight
- 18.06 kg
Dimensions
- L: 39.37 mm
- W: 19.69 mm
- H: 3.94 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Volume Capacity | 1mL graduated capacity | Range from 0.5mL to 10mL depending on model | Optimal size for most routine cell culture and microbiological sampling procedures. |
| Packaging | Individually wrapped sterile | Bulk packaging or multi-unit sterile pouches | Individual wrapping prevents contamination of unused pipettes when working in sterile environments. |
| Material Construction | Low-density polyethylene (LDPE) | Various plastic polymers including polystyrene or polypropylene | LDPE provides good chemical compatibility and flexibility for repeated bulb compression. |
| Graduation Markings | Volume graduations included | Some models lack graduations | Enables approximate volume measurement without requiring separate measuring devices. |
This product combines 1mL capacity with individual sterile packaging and graduated markings. The LDPE construction provides chemical compatibility and durability for routine laboratory liquid handling applications.
Practical Tips
Pre-wet the pipette tip with the sample liquid before final aspiration to improve accuracy.
Why: Reduces surface tension effects and dead volume variability between samples.
Maintain consistent compression speed when aspirating and dispensing liquids.
Why: Ensures reproducible volumes and prevents formation of air bubbles in viscous samples.
Never pipette by mouth or use damaged pipettes with cracked bulbs or tips.
Why: Prevents exposure to hazardous materials and maintains sterility integrity.
Store unopened pipettes in a clean, dry environment away from direct sunlight.
Why: Preserves LDPE material properties and maintains sterile packaging integrity.
Use mechanical pipettes for applications requiring precise volume measurements below 0.1mL increments.
Why: Graduated markings on transfer pipettes are intended for approximate rather than precision measurements.
If liquid does not aspirate properly, check for air leaks in the bulb or blockages in the tip.
Why: Ensures proper suction mechanism function and prevents sample loss during transfers.
Setup Guide
What’s in the Box
- 500 individually wrapped sterile transfer pipettes (typical)
Warranty
ConductScience provides standard warranty coverage against manufacturing defects. Technical support available for application guidance and product specifications.
Compliance
References
Background reading relevant to this product:
What is the accuracy of the graduated volume markings?
The graduations provide approximate volume measurement suitable for routine liquid handling. For precision volumetric work, calibrated micropipettes should be used.
Are these pipettes compatible with organic solvents?
LDPE construction provides compatibility with most aqueous solutions and mild solvents. Consult chemical compatibility charts for specific organic solvents.
How long do the sterile pipettes remain sterile in their packaging?
Sterility is maintained as long as the individual wrapper remains intact and undamaged. Check packaging for any expiration dates or storage recommendations.
Can these pipettes be autoclaved for reuse?
These are designed as single-use disposable items. The LDPE construction may deform under autoclave conditions and sterility cannot be guaranteed after reuse.
What is the dead volume in these pipettes?
Dead volume varies based on liquid properties and handling technique. Some liquid will remain in the tip and stem after dispensing.
Are these suitable for cell culture applications?
Yes, the individual sterile packaging and LDPE construction make them appropriate for cell culture media handling and other aseptic applications.
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