residual solvents matter more than people think for anything that went through a lot of purification steps
#coa-reading 2025-06-16
Monday10 messages3 participantstimes are UTC
Highlights from this day
- batch_bandit — residual solvents matter more than people think for anything that went through a lot of purification steps 10:47
- area_percent — quick one the three way match is vial, certificate, invoice. if all three agree you have something 11:02
- VialBot — Recon calculator: 5mg in 3ml = 5mg/ml. 11:06
- area_percent — update from 7 months ago: started asking every supplier for water content and about half now include it 11:21
- area_percent — if you only read one line on a certificate, read the lot number. if you read two, read the assay 11:41
an identical chromatogram on two different lots is the single biggest tell there is
*Medutest not the other one
gross mass on a jewellery scale plus the water content is enough to catch most underfills
quick one the three way match is vial, certificate, invoice. if all three agree you have something
🎉9
my 10mg vial weighed more than 2mg of powder, is the certificate lying
Recon calculator: 5mg in 3ml = 5mg/ml.
update from 7 months ago: started asking every supplier for water content and about half now include it
looks re-dated
if you only read one line on a certificate, read the lot number. if you read two, read the assay