Method · 2026-10-23
Why lot numbers matter more than you think in replicate work
Replicates only tell you something if the material behind them is the same. How lot tracking keeps that promise, and where it commonly slips.
Journal
Notes on documentation and planning
Practical articles on reading lot paperwork, planning study schedules and handling new lots. General laboratory practice only; batch guidance always takes precedence.
Handling · 2026-10-16
A first-session checklist for lyophilized vials
A short checklist for the first time a new lot is opened, covering the record, the storage conditions and the notes you should write down.
Planning · 2026-10-09
Planning pack sizes for a study that runs for weeks
How to work backwards from the number of runs to the vial and kit sizes that match the schedule, with room for repeats.
Documentation · 2026-10-02
How to read a certificate of analysis without guessing
A walk through the fields a certificate of analysis usually contains, and the questions worth asking when a field is blank.