Pillar · liquid handling
Accurate micropipetting technique
How an air-displacement micropipette delivers a volume, how forward pipetting uses the two stops, and why temperature belongs in the result.
8 October 2026 · 9 min read
Tag
calibration
Articles tagged calibration. Tags group methods across clusters so a technique can be found from more than one route.
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12 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
Gravimetric checks with a balance
Turn a balance reading into a delivered volume with the water temperature you measured, and see what a water check can support.
8 October 2026 · 7 min read
liquid handling
ISO 8655 as a calibration framework
Use ISO 8655 as terminology and a user framework, and compare your own gravimetric check with the specification you claim.
8 October 2026 · 7 min read
liquid handling
Monsoon humidity and weighing a check
Read monsoon humidity as a weighing problem: static, drift, condensation, and slower evaporation, before you blame the pipette.
8 October 2026 · 7 min read
buffers and water
pH electrodes storage and calibration
Store the glass electrode in its storage solution, calibrate with fresh buffers that bracket the target, and treat a tired slope as a failed control.
8 October 2026 · 9 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
immunoassays
Standard curves that bend
Why immunoassay standard curves are sigmoid, where the usable window sits, and what an early bend or a forced straight line does to a reported value.
8 October 2026 · 9 min read
liquid handling
Temperature of the liquid changes the volume
Equilibrate cold liquids and warm pipettes before you trust an air-displacement volume, and separate that error from a weighing drift.
8 October 2026 · 8 min read
pcr amplification
Thermal cycler checks after a power cut
Check whether a thermal cycler finished, restarted at cycle one, or lost its heated-lid set-point before you trust a precious plate.
8 October 2026 · 8 min read
labware
Volumetric flasks and class A markings
How to use a Class A or Class B volumetric flask, including to contain or to deliver, the reference temperature, and the meniscus.
8 October 2026 · 8 min read
liquid handling
What a calibration certificate does and does not say
Read a pipette certificate for date, reference, volumes, and errors, and judge when a later drop or heavy use ends that claim.
8 October 2026 · 7 min read