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Reference articles on peptide research methodology — Certificate of Analysis reading, reconstitution, HPLC interpretation, storage, and identity validation. Written for first-time research users.
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What ‘research-use only’ actually means
Across the peptide-supply industry, the phrase “Research Use Only” (RUO) appears on labels, invoices, websites, and shipping documentation. To a first-time buyer, the label may look like fine print. To regulators, it is a…
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Research-grade, documented.
Every vial ships ≥ 99% HPLC, lot-stamped, with a CoA on request. The standards these guides describe — applied to every order.
Browse the catalog →Reading an HPLC chromatogram
The HPLC (high-performance liquid chromatography) chromatogram on a peptide CoA is the single most important quality document a researcher receives with a…
Read →Lyophilization and reconstitution
Most research-grade peptides arrive as a white or off-white lyophilized (freeze-dried) cake or powder inside a sterile vial. Before use, the material…
Read →Bacteriostatic water vs sterile water for injection
The choice between bacteriostatic water (BAC water) and sterile water for injection (SWFI) as a reconstitution solvent for research peptides is one…
Read →Mass spectrometry for peptide identity
Mass spectrometry (MS) is the cornerstone of peptide identity confirmation. While HPLC purity tells you what proportion of the sample is the…
Read →Storage and stability — what affects shelf life
Research-grade peptides are remarkable molecules — short chains of amino acids that can be synthesized, lyophilized, and shipped halfway around the world…
Read →Reading a Certificate of Analysis
The Certificate of Analysis (CoA) is the most important quality document a researcher receives with a research-grade peptide. It’s a per-lot record…
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