Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Certificates of analysis
Page 12 of 51 of this archive, newest first.
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 declines, for the 17th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Asparagine, glycine, and the two residues that decide a shelf life
An isoaspartate rearrangement changes the molecule and not the mass. A method that confirms identity by molecular weight alone will report it as the parent compound.
Homopeptide declines, for the 20th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
LAL, kinetic chromogenic, recombinant factor C: three ways to the same figure
We submitted vials for endotoxin determination and report the results, the method and the laboratory, because a pyrogen figure without a method is as empty as a purity…
Independent analysis puts a QSC mazdutide lot at 97.1%, against 93.6% on the certificate
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
VendorInvestigate result on a Xi'an cagrilintide lot lands 0.7 points below the supplier’s 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 will not say about 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 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.
Sweden health authority warns on falsified exenatide pens
Reported from the analysis, not from a warning notice.
The United Kingdom health authority warns on falsified semaglutide pens
Reported from the analysis, not from a warning notice.
What twenty companies say about storage, and what they have measured
We asked twenty companies three questions about stability data and print every answer, refusal and non-response.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
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 ERP in December, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Baseline construction, and the area that depends on where you draw the line
Chromatographic software does not integrate every fluctuation in the baseline. It applies a threshold, and the threshold changes the reported purity by amounts that matter…
PeptideMeter result on a Zhuhai tirzepatide lot lands 3.5 points below the supplier’s figure
The result is unremarkable. What the report omits is not.