Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Certificates of analysis
Page 6 of 51 of this archive, newest first.
QYB names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
What PeptideMeter is able to certify about a sealed vial, and what it is not
Every certificate circulating in this market answers a question about molecules. Almost none answers a question about organisms, pyrogens, or the integrity of the seal.
PeptideMeter result on a Guangzhou orforglipron lot lands 1.7 points above the supplier’s stated figure
The supplier confirmed the determination and supplied the method behind its own figure inside a week.
Custody, condition and the temperature nobody logged
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 TFC in March, and what the company says prompted 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.
What changed at GL Biochem in March, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Independent analysis puts a GL Biochem liraglutide lot at 98.5%, against 94.4% on the certificate
A reminder that a purity figure is the output of a method, and that methods differ.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Nought point nine eight of a dalton: the modification that hides in plain sight
What would be needed to catch each of these, and what it would cost.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Low endotoxin recovery: the interference nobody looks for
The limit for a parenteral product is calculable from the dose and the body weight in two lines. Almost nobody in this trade performs the calculation.
Spain health authority warns on falsified exenatide pens
Reported from the analysis, not from a warning notice.
What happens to a stopper after the fourth needle
Particulate matter is the oldest quality attribute in injectable manufacture and the one a private buyer is best placed to assess without instrumentation.
The degradation product that elutes underneath the parent peak
Deamidation, oxidation, aggregation and hydrolysis account for nearly all of what happens to a peptide over time. Each has a characteristic residue, a characteristic…
Independent analysis puts a BCH mazdutide lot at 96.0%, against 93.7% on the certificate
A reminder that a purity figure is the output of a method, and that methods differ.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
An interlaboratory comparison nobody had run
Duplicate submissions under different names test within-laboratory repeatability, which is a different quantity from between-laboratory reproducibility.
Independent analysis puts a MKM liraglutide lot at 99.0%, against 97.4% on the certificate
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.