Italy health authority warns on falsified exenatide pens
Reported from the analysis, not from a warning notice.
Purity
Page 12 of 51 of this archive, newest first.
Independent analysis puts a SSA liraglutide lot at 96.5%, against 93.1% on the certificate
The report states the gradient, the wavelength and the integration threshold, which is more than most.
VendorInvestigate result on a Zhuhai survodutide lot lands 3.8 points above the supplier’s stated figure
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
What changed at TFC in December, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Nought point nine eight of a dalton: the modification that hides in plain sight
Deamidation adds 0.98 daltons. On a low-resolution instrument at incretin molecular weights, that is inside the noise.
WWB names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Singapore health authority warns on falsified tirzepatide pens
Reported from the analysis, not from a warning notice.
Who chose the vial that was tested?
The condition on arrival is recorded by some services and not others, and it is one of the more informative lines in a report.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Sterility is not a percentage, which is the whole difficulty
Purity, content, identity, sterility and endotoxin are five separate determinations. A single sheet of paper carrying one of them is not evidence about the other four.
The submitted sample: the weakest link in the whole system
What a laboratory can and cannot know about the provenance, storage history and representativeness of what lands on its bench.
Independent analysis puts a WWB tirzepatide lot at 98.7%, against 94.6% on the certificate
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
GL Biochem names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
The Netherlands health authority warns on falsified liraglutide pens
Reported from the analysis, not from a warning notice.
Why the theoretical mass on the certificate might be the wrong theoretical mass
A worked example: one peptide, five charge states, five mass-to-charge ratios, one molecular weight.
PeptideMeter result on a Zhuhai dulaglutide lot lands 3.7 points above the supplier’s stated figure
The report states the gradient, the wavelength and the integration threshold, which is more than most.
What changed at KP in December, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Date of analysis, date of manufacture, and the gap between them
A document is only as good as the chain that connects it to the material, and most chains here are two or three links longer than the paperwork admits.
What changed at KP in December, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What a split-sample exercise can establish, and what it cannot
The Journal submitted split samples from single lots to three assay services, under names unconnected to this publication, and published each method alongside each result.