test it yourself
#coa-reading 2025-04-10
Thursday12 messages6 participantstimes are UTC
Highlights from this day
- peak_split — nobody can authenticate a certificate from a scan. you authenticate the material by testing it yourself 20:05
- bac_water_bill — i asked CPC for the method and they sent it. that alone put them ahead of most 21:02
- VialBot — Recon calculator: 20mg in 1ml = 5mg/ml. 21:07
- peak_split — follow up whats the minimum a certificate has to have before you take it seriously 21:26
nobody can authenticate a certificate from a scan. you authenticate the material by testing it yourself
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check the lot
follow up net peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial, ymmv
i have never seen a research certificate with an endotoxin result on it. not once
i asked CPC for the method and they sent it. that alone put them ahead of most
[edited]purity is what fraction of the contents is the target. assay is how many mg are actually there. different questions
Recon calculator: 20mg in 1ml = 5mg/ml.
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unrelated but an identical chromatogram on two different lots is the single biggest tell there is
is water content normally on a certificate or do you have to ask
the related substances table is the interesting part. a row of "not detected" means they did not look hard
follow up whats the minimum a certificate has to have before you take it seriously
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