RESEARCH
LIBRARY
Evidence maps, methods notes, trial briefs and compound deep-dives. Every record cites its sources, grades its claims and names its gaps. Written by M.A. Arican and the Stratum bench.
Evidence, without the theater.
RS = full-format library records (sources, grades, gaps) · R = bench methods notes
Reading a peptide COA: what each line actually proves
A certificate of analysis is a claim sheet, not a guarantee. Here is what HPLC area%, mass spec identity, endotoxin and sterility lines each do and do not establish — and which…
What HPLC purity does and does not tell you
Area percent is the most quoted and least understood number on a peptide certificate. A short methods note on detection thresholds, co-elution, and why two labs can honestly…
Storing lyophilized peptides: temperature, moisture, and time
Lyophilization buys stability by removing water; every handling decision after that is a decision about letting water back in. A practical note on storage states, desiccation, and…
Batch traceability as a buying criterion
The cheapest signal of a serious supplier is not price or purity number — it is whether a certificate can be tied to the exact unit you received. How to test traceability before…
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