is sterility tested as part of a normal purity certificate
#coa-reading 2025-06-23
Monday10 messages5 participantstimes are UTC
Highlights from this day
- protein_floor — is area percent the same thing as how many mg are in the vial if you only read one line on a certificate, read the lot number. if you read two, read the assay 15:16
- protein_floor — two certificates from the same supplier have an identical chromatogram, is that normal 15:57
- ms_ms_mira — water content is why an honest 10mg vial assays at 9.1. karl fischer titration, and most certificates omit it 17:17
- identity_shift — my 15mg vial weighed more than 10mg of powder, is the certificate lying 17:28
does anyone actually check the residual solvents section
the font on this one changes halfway down, am i being paranoid
is area percent the same thing as how many mg are in the vial
if you only read one line on a certificate, read the lot number. if you read two, read the assay
two certificates from the same supplier have an identical chromatogram, is that normal
❤️4🤝2
ask for water content
purity is not assay
water content is why an honest 10mg vial assays at 9.1. karl fischer titration, and most certificates omit it
coming back to this is endotoxin ever tested on research material
my 15mg vial weighed more than 10mg of powder, is the certificate lying