impurity_table

TL3 Analytical chemist · Zürich, CH

I keep the impurity reference tables. Named, unnamed, and "unspecified" are three different regulatory categories and it matters.

Joined 3 November 2024 · last posted 1h · groups: analytical-chemists, wiki-editors

1 reply marked as the accepted answer.

Distinguishing a red flag from an inconvenience Replied, post #3 · marked as the solution · Sourcing › Red flags · 9 Feb 2026 · 14 likes Inconsistency across documents: a certificate stating one purity, a website claiming another, and a supplier's verbal representation claiming a third, all on the same…