The cold chain in this trade is a gel pack and an optimistic estimate
A gel pack has a finite thermal budget, and once it is spent the payload equilibrates with whatever is outside the box. The only question is how long that takes.
Purity
Page 50 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.
Leucine, isoleucine, and a difference no balance can measure
Deamidation adds 0.98 daltons. On a low-resolution instrument at incretin molecular weights, that is inside the noise.
The retest date and the expiry date are not the same document
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.
SSA declines, for the 24th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Independent analysis puts a TFC liraglutide lot at 97.8%, against 94.8% on the certificate
The report states the gradient, the wavelength and the integration threshold, which is more than most.
What changed at SWB in January, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Mass spectrometry answers a different question, properly
Where two methods disagree, the conservative convention is to report the lower figure. It is not universal, and whether a laboratory follows it belongs on the report.
What changed at QST in January, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
How a claim degrades between the bench and the listing
The Journal does not treat a badge as evidence and states so wherever it reports one.
What changed at WWB in January, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Independent analysis puts a BCH tirzepatide lot at 98.3%, against 94.9% on the certificate
The report states the gradient, the wavelength and the integration threshold, which is more than most.
The certificate says 2024. The vial in your hand does not say anything.
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.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
A named analyst is the cheapest quality signal in this trade
What the Journal asks when a document arrives unsigned, and what the answers have been.
GGPeps declines, for the 3rd time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Deamidation, oxidation, and the two shifts worth memorising
What would be needed to catch each of these, and what it would cost.
What changed at MKM in January, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Independent analysis puts a FGP liraglutide lot at 95.7%, against 95.0% on the certificate
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.