liquid handling
Air displacement versus positive displacement
Trace under-delivery and dripping to the air cushion or the piston, and choose the pipette class that matches the liquid.
8 October 2026 · 7 min read
Tag
pipettes
Articles tagged pipettes. Tags group methods across clusters so a technique can be found from more than one route.
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8 articles
liquid handling
Checking a pipette between calibrations
A gravimetric water check shows whether a piston pipette is still fit for quantitative work between scheduled calibrations, and when to stop using it.
8 October 2026 · 10 min read
liquid handling
Decontamination of a pipette
Choose a pipette decontamination from the manufacturer insert, including disinfectant, UV limits, autoclave permission, and the tip ejector.
8 October 2026 · 7 min read
liquid handling
Questions before a pipette enquiry
List volume range, displacement type, channels, tip family, calibration documents, and chemical exposures before you send a pipette enquiry.
8 October 2026 · 7 min read
liquid handling
Serological pipettes are a different tool
Tell a blow-out serological pipette from a micropipette, use a controller, and retire a cracked pipette before it delivers a wrong millilitre.
8 October 2026 · 7 min read
liquid handling
Service intervals are not a guess from the internet
Set a pipette service interval from usage, liquids, and the manufacturer recommendation, and check a dropped pipette before it returns.
8 October 2026 · 6 min read
laboratory safety
Sharps and glass pasteur pipettes
A glass Pasteur pipette is a sharp in the middle of an ordinary transfer. Substitution and the waste stream are institutional decisions.
8 October 2026 · 9 min read
liquid handling
Troubleshooting a dripping pipette
Name the seal, shaft, solvent, and piston causes of a dripping pipette, and keep that pipette out of service until it is checked.
8 October 2026 · 6 min read