Introduction for Pasteur Pipette:
1. Definition and Specifications
- Nomenclature: Pasteur pipette (also termed Transfer pipette or Dropping pipette).
- Material: Medical-grade low-density polyethylene (LDPE) or transparent polyethylene (PE), biocompatible.
- Classification: Single-use consumable, available in gamma-ray sterilized or non-sterilized variants.
2. Key Technical Features
① Surface optimization: Tension-treated for enhanced fluid flow and minimal residual retention.
② High transparency: Facilitates meniscus observation and volume reading (graduated models available).
③ Flexible design: Withstands 15°–30° bending for compatibility with microcontainers or irregular openings.
④ Precision control: Repeatable drop dispensing (0.1–3ml range) with low error margin.
⑤ Heat-sealable tip: Enables secure liquid transport upon thermal sealing.
3. Primary Applications
Essential for micro-volume liquid handling in:
- Cell culture protocols
- Clinical diagnostics (specimen collection)
- Biochemical analysis
- Genetic engineering (cloning assays)
- Pharmaceutical R&D (compound mixing/transfer)
- Industrial sectors (petrochemical/military reagent handling).
4. Critical Safety Notes：
- Contamination control: Avoid tip/container contact; wear gloves throughout operation.
- Mechanical protection: Apply gentle bulb pressure to prevent pipette fracture.
- Chemical compatibility: Confirm material resistance to solvents (e.g., avoid acetone with PE pipettes).
- Volume limitation: Never exceed maximum graduated capacity.
5. Disposal Protocol
- Biohazard materials: Autoclave before discarding.
- Chemical residues: Decontaminate with appropriate neutralizing agents prior to disposal.