the related substances table is the interesting part. a row of "not detected" means they did not look hard
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Thread · #coa-reading · 2025-05-17
an identical chromatogram on two different lots is the
Spun off from a message in #coa-reading on 2025-05-17. 10 messages, 4 participants.
The message this came from
- forty_five_kg — an identical chromatogram on two different lots is the single biggest tell there is if you only read one line on a certificate, read the lot number. if you read two, read the assay 23:28
purity is not assay
a vial can be 99.4% pure and hold 8.1mg of a 10mg label. both numbers are true and only one of them is the one you care about
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thats the counterion
no lot no certificate
a vial can be 99.4% pure and hold 8.1mg of a 10mg label. both numbers are true and only one of them is the one you care about
the three way match is vial, certificate, invoice. if all three agree you have something
the three way match is vial, certificate, invoice. if all three agree you have something
the retention time on this one is different from the last lot, problem
certificate is dated before the lot date, is that just sloppiness