#impurity-testing
3 pieces tagged impurity-testing.
- Reading the paperworkSterility, metals and solvents: tests a purity certificate omitsWhat third-party tested actually covers. Purity, identity, sterility, endotoxin, elemental impurities, residual solvents and water are seven separate assays with seven separate standards, and a research certificate carries two or three of them.
- Reading the paperworkA peptide paperwork glossaryThirty-six entries for the terms that appear on peptide certificates, labels and regulatory pages, each defined in one to three sentences from a primary source and linked to the piece that explains it.
- Reading the paperworkEndotoxin: what EU/mg means on a certificateWhat bacterial endotoxin is, how the LAL and recombinant Factor C methods detect it, why FDA's limit is a ratio rather than a figure in EU/mg, and why a research certificate usually stops short of it.
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