Accurate liquid handling is the foundation of reproducible laboratory science. Whether you are setting up a PCR reaction in a molecular diagnostics lab at Biopolis, performing serial dilutions in a QC lab in Tuas, or dispensing cell-culture media at a NUS research facility — micropipettes are the instruments you reach for dozens of times every day. JW RESEARCH SUPPLY provides Singapore laboratories with a comprehensive range of high-precision micropipettes that meet ISO 8655 standards at competitive price points.
Why Micropipette Quality Matters
A low-quality micropipette introduces systematic error and random variation that compromise downstream results. Key performance factors include:
- Accuracy — how close the dispensed volume is to the set volume (systematic error)
- Precision — how consistently the same volume is dispensed (random error, expressed as CV%)
- Ergonomics — low plunger force, lightweight body, and contoured grip reduce repetitive strain injury (RSI) risk during prolonged use
- Calibration stability — how well the instrument retains its accuracy over time and thermal cycling
All JW RESEARCH SUPPLY micropipettes are individually tested and supplied with a manufacturer calibration certificate traceable to international standards.
Micropipette Types We Supply
1. Single-Channel Adjustable-Volume Micropipettes
The workhorse of any wet lab. Our single-channel models feature a digital volume display, lockable volume-setting mechanism, and a separate tip ejector. The piston assembly is constructed from PVDF (polyvinylidene fluoride) for chemical resistance, and the body is autoclavable at 121 °C. Available in seven volume ranges from 0.1 µL to 10 mL.
2. Multi-Channel Micropipettes (8-Channel & 12-Channel)
Designed for high-throughput 96-well plate workflows, our multi-channel micropipettes allow simultaneous aspiration and dispensing across a full row. Each channel is independently sealed to prevent cross-contamination. Manifold designs are available in 8-channel (single row) and 12-channel (single column) configurations. Ideal for ELISA, PCR plate preparation, and cell-based assays at A*STAR and diagnostic labs across Singapore.
3. Electronic Micropipettes
For labs that demand the highest reproducibility and the lowest operator fatigue, our electronic micropipettes feature a motor-driven piston with programmable multi-dispensing, mixing, and reverse-pipetting modes. The rechargeable lithium-ion battery supports a full day of continuous operation. Electronic models reduce CV% to as low as 0.15% in the mid-range — a significant improvement over manual pipetting.
Technical Specifications
| Model Range | Volume (µL) | Increment (µL) | Accuracy ±% | Precision CV% | Channel | Tip Compatibility |
|---|---|---|---|---|---|---|
| JWP-0.1-2.5 | 0.1 – 2.5 | 0.002 | 2.5 / 1.5 | 2.0 / 0.7 | 1 | 10 µL |
| JWP-0.5-10 | 0.5 – 10 | 0.01 | 1.0 / 0.5 | 0.8 / 0.4 | 1 | 10 µL |
| JWP-2-20 | 2 – 20 | 0.02 | 0.8 / 0.4 | 0.6 / 0.3 | 1 | 200 µL |
| JWP-10-100 | 10 – 100 | 0.1 | 0.8 / 0.3 | 0.5 / 0.2 | 1 | 200 µL |
| JWP-20-200 | 20 – 200 | 0.2 | 0.6 / 0.3 | 0.4 / 0.15 | 1 | 200 µL |
| JWP-100-1000 | 100 – 1000 | 1.0 | 0.6 / 0.3 | 0.4 / 0.15 | 1 | 1000 µL |
| JWP-1000-10000 | 1000 – 10000 | 10.0 | 0.6 / 0.3 | 0.3 / 0.2 | 1 | 10 mL |
| JWP-M8-10-100 | 10 – 100 | 0.1 | 1.0 / 0.5 | 0.7 / 0.3 | 8 | 200 µL |
| JWP-M12-20-200 | 20 – 200 | 0.2 | 1.0 / 0.5 | 0.7 / 0.3 | 12 | 200 µL |
| JWP-E-0.5-1000 | 0.5 – 1000 | 0.01 | 0.4 / 0.2 | 0.3 / 0.15 | 1 | Universal |
Accuracy and precision values shown as (max volume / min volume). Tested per ISO 8655-2 at 21 °C ± 1 °C with distilled water.
Calibration & Maintenance Best Practices
To maintain ISO 8655 compliance and extend instrument life, Singapore laboratories should adopt the following routine:
- Daily check: Visual inspection for tip-cone damage, seal integrity, and smooth plunger travel before first use.
- Monthly cleaning: Disassemble the lower assembly, clean piston and seal with isopropanol, and apply a thin film of silicone grease (included with every JWP micropipette).
- Quarterly gravimetric calibration: For GLP/GMP labs, perform a 3-point (low/mid/max) gravimetric calibration using a calibrated analytical balance. Document results in your equipment log.
- Annual service: Send units to an ISO 17025-accredited calibration lab for full certification. JW RESEARCH SUPPLY can recommend partner calibration services in Singapore.
Compatible Pipette Tips & Accessories
Every micropipette is only as accurate as the tip it uses. JW RESEARCH SUPPLY stocks a full range of universal-fit pipette tips manufactured from virgin medical-grade polypropylene:
- Non-sterile bulk tips (10 µL / 200 µL / 1000 µL) – economical for teaching labs and non-critical applications
- Pre-sterilized racked tips – gamma-irradiated, individually racked in autoclavable boxes
- Aerosol-barrier filter tips – hydrophobic PE filter prevents aerosol carryover; essential for PCR and infectious-sample handling
- Low-retention tips – chemically treated surface minimizes sample binding; recommended for proteomics and low-concentration nucleic acid work
- Extended-length tips (up to 1250 µL) – for deep-well plates and narrow-neck vessels
📞 Request a Quote or Arrange a Demo in Singapore
JW RESEARCH SUPPLY offers on-site demonstrations, volume-pricing discounts, and next-business-day delivery across Singapore.
📧 Email: SINGAPORE@JWSHY.COM
📱 Phone / WhatsApp: +65 8039 3660
Frequently Asked Questions
What is the difference between air-displacement and positive-displacement micropipettes?
Air-displacement micropipettes use an air cushion between the piston and the liquid, making them suitable for aqueous solutions and most routine lab work. Positive-displacement micropipettes use a disposable piston that directly contacts the liquid, ideal for viscous, volatile, or corrosive samples such as organic solvents, oils, and concentrated acids.
How often should laboratory micropipettes be calibrated in Singapore?
ISO 8655 recommends calibrating micropipettes every 6 to 12 months depending on usage frequency. High-throughput labs or GLP/GMP facilities in Singapore should calibrate quarterly. JW RESEARCH SUPPLY can assist with connecting you to accredited Singapore-based calibration service providers.
What volume ranges do your micropipettes cover?
JW RESEARCH SUPPLY offers adjustable-volume micropipettes spanning 0.1 µL to 10 mL. Common ranges include 0.1–2.5 µL, 0.5–10 µL, 2–20 µL, 10–100 µL, 20–200 µL, 100–1000 µL, and 1–10 mL. Multi-channel models are available in 8-channel and 12-channel configurations for 96-well plate workflows.
Do you supply pipette tips that match your micropipettes?
Yes. JW RESEARCH SUPPLY provides universal-fit pipette tips in bulk, racked, pre-sterilized, and filtered options that are compatible with our micropipettes as well as major brands. Tips are available in 10 µL, 200 µL, and 1000 µL formats, manufactured from virgin polypropylene certified free of DNase, RNase, and endotoxins.