Know How

Pipette Challenging Liquids

Know How

Overcome challenging liquids with this free poster

Pipetting non-aqueous liquids – such as those with higher viscosity, increased vapor pressure, corrosive samples or foaming reagents – require special handling to achieve consistent pipetting accuracy. Our free Pipette Challenging Liquids poster provides a quick primer on identifying these liquids and tips/techniques for pipetting them with greater accuracy and speed.

Air-displacement pipettes are the instruments most researchers use to transfer liquids in the lab. “Reverse pipetting” is an effective technique for accurately dispensing many non-aqueous liquids using an air-displacement pipette, but positive displacement pipettes are often a better option. Why? Rather than using a tip and air column to aspirate and dispense, their piston/capillary eliminates issues with air pressure and sticky liquids can’t adhere to the tip wall.

Order your free Pipette Challenging Liquids poster and you’ll automatically be entered to win a free Rainin NanoRep positive displacement repeater pipette. Don’t wait! Drawing closes December 29, 2023. We’ll announce the winner in early January.


NanoRep is the world’s first handheld repeater pipette capable of dispensing aliquots as low as 100 nL. 

  • Maximize flexibility with positive displacement technology
  • Reduce your risk of cross-contamination and speed workflows with No Touch Off™ dispense
  • Achieve accuracy and precision across a wide volume range: 100 nL to 50 mL
  • Simplify workflows with NanoRep’s bright color screen, joystick control and programmable/retrievable protocols