unrelated but an identical chromatogram on two different lots is the single biggest tell there is
#coa-reading 2025-01-09
Thursday10 messages4 participantstimes are UTC
Highlights from this day
- HPLC_Hank — slightly off topic but is a supplier certificate worth anything on its own 18:30
- hair_month_four — a supplier certificate on its own is a starting point, not evidence. that is the whole reason the verification channel exists 18:41
- hair_month_four — update on the earlier thing the three way match is vial, certificate, invoice. if all three agree you have something 18:44
slightly off topic but is a supplier certificate worth anything on its own
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tfa or acetate, how do i tell from the paperwork
thats the counterion
no lot number, no certificate. a document you cannot tie to the vial in your hand is decoration, thats one data point
residual solvents matter more than people think for anything that went through a lot of purification steps
not detected means nothing
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a supplier certificate on its own is a starting point, not evidence. that is the whole reason the verification channel exists
update on the earlier thing the three way match is vial, certificate, invoice. if all three agree you have something
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is endotoxin ever tested on research material