Records · 2026-11-13
A solution log that survives a busy week
Logs fail when they live away from the bench. Five fields, one line per opening, and the closing entry that makes the log worth keeping.
Bench notes
Notes from the bench
Short practical write-ups on preparing solutions, moving material between vials and keeping the log straight afterwards. General practice only; the handling sheet that came with your lot always takes precedence.
Preparation · 2026-11-06
Bacteriostatic or sterile water: picking a diluent
Two diluents do the same job in different ways. What separates them, which one suits a stock that is opened on several days, and the label details that keep the choice visible.
Preparation · 2026-10-30
From a sealed vial to a working solution
The order of the steps matters more than the reagents. A workable sequence for turning a sealed lyophilized vial into a working solution, and the two points where the record usually breaks.