Peptide harm reduction: difference between revisions
Diff·revision 1 → 2·15:35, 3 Dec 2024
Difference between revision 1 and revision 2 of Peptide harm reduction. 13 lines changed; the page grew by 798 bytes.
| Revision 1 — 01:09, 30 Nov 2024 HarmReductionHen (talk) create article — access and cost stub 1,258 bytes +1,258 | Revision 2 — 15:35, 3 Dec 2024 CostPerMgCory (talk) rm the telehealth provider name; the article describes the model, not the vendors 2,056 bytes +798 | ||
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| 10 | The uncertainties are specific and documented elsewhere on this wiki: identity, which a purity figure does not establish; content, which determines how much active substance a vial holds; sterility, which a research-chemical powder does not have; and provenance, which determines whether any document attaches to the material at all.{{r|usp1503}} | 10 | The uncertainties are specific and documented elsewhere on this wiki: identity, which a purity figure does not establish; content, which determines how much active substance a vial holds; sterility, which a research-chemical powder does not have; and provenance, which determines whether any document attaches to the material at all.{{r|usp1503}} |
| 11 | 11 | ||
| + | 12 | == What the uncertainties are == | |
| + | 13 | | Uncertainty | Resolved by | Commonly reported? | | |
| + | 14 | |---|---|---| | |
| + | 15 | | Identity | [[Mass spectrometry]] confirmation | Sometimes | | |
| + | 16 | | Purity | Named chromatographic method | Usually | | |
| + | 17 | | Content | [[Peptide content]], water, counterion | Rarely | | |
| + | 18 | | Fill mass | Gravimetric check | Rarely | | |
| + | 19 | | Sterility | [[Sterility testing]]; not applicable to research powders | No | | |
| + | 20 | | Endotoxin | [[Bacterial endotoxin test]] | Rarely | | |
| + | 21 | | Provenance | [[Lot traceability]] records | Variable | | |
| + | 22 | ||
| + | 23 | The row that matters most and is reported least is content. Without it the mass of peptide in a vial is unknown, and every downstream quantity — concentration after [[Reconstitution of lyophilised peptides|reconstitution]], volume drawn, exposure — inherits that unknown.{{r|usp1503}} | |
| + | 24 | ||
| 12 | == References == | 25 | == References == |
| 13 | {{reflist}} | 26 | {{reflist}} |