Independent analysis puts a QYB mazdutide lot at 95.1%, against 91.4% on the certificate
A reminder that a purity figure is the output of a method, and that methods differ.
Purity
Page 42 of 51 of this archive, newest first.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
From vial to bench: what is recorded and what is assumed
The condition on arrival is recorded by some services and not others, and it is one of the more informative lines in a report.
What changed at CPC in July, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Check the vial, not the box
The interval between manufacture and analysis is the most under-read figure on the page, and the one most likely to matter by the time a vial is opened.
Independent analysis puts a ERP cagrilintide lot at 95.3%, against 91.4% on the certificate
The result is unremarkable. What the report omits is not.
ERP declines, for the 10th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Benzyl alcohol is a preservative, not a sterilising agent
At low concentrations a measurable fraction of peptide can adsorb to glass and plastic surfaces, and the loss is largest exactly where it is least expected.
VendorInvestigate result on a Shenzhen dulaglutide lot lands 1.9 points below the supplier’s figure
The supplier has not disputed the finding. It has not explained the gap either.
Nigeria health authority warns on falsified tirzepatide pens
Reported from the analysis, not from a warning notice.
Set the threshold at a tenth of a per cent and the small impurities vanish
We work through a single chromatogram twice, under two integration conventions, and show where the difference comes from.
The submitted sample: the weakest link in the whole system
A result on one vial generalises to a batch only if the vial was drawn in a way that makes it representative — and nobody records how it was drawn.
Ireland health authority warns on falsified semaglutide pens
Reported from the analysis, not from a warning notice.
What we asked twenty suppliers about stability data
A retest date says that material should be re-examined before use. An expiry date says it should not be used. The trade uses the second word for the first concept.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
What changed at WXT in June, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What a batch number is supposed to mean
The interval between manufacture and analysis is the most under-read figure on the page, and the one most likely to matter by the time a vial is opened.
Mexico health authority warns on falsified liraglutide pens
Reported from the analysis, not from a warning notice.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.