Journal
Working notes on methodology, logistics, and the small things that separate a clean chromatogram from a misleading one. Written by the Alvar team, published when the bench has something to say — never on a cadence.
A field guide to retention times, area-under-curve, and the small lies a purity percentage can hide.
All entries
What the team checks before a lot is cleared for catalog release.
UV-area, mass-balance, and AAA tell three different stories. How we reconcile them before declaring a purity number.
The physics of freeze-drying, the cakes that come out right, and the collapse patterns that signal an over-warmed shelf.
How vial, package, and COA language stays aligned for EU research fulfillment.
The salt form affects content calculations, solubility, and stability. When acetate goes above 15%, downstream assay interpretation gets harder.
The short version: a supplier that makes you ask for the chromatogram doesn't want you reading it.
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New entries arrive when the bench has something to say. No cadence, no newsletter padding.