What changed at BCH in September, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Purity
Page 37 of 51 of this archive, newest first.
Janoshik result on a Wuxi survodutide lot lands 2.9 points above the supplier’s stated figure
The supplier confirmed the determination and supplied the method behind its own figure inside a week.
Independent analysis puts a BCH mazdutide lot at 98.6%, against 96.0% on the certificate
The supplier confirmed the determination and supplied the method behind its own figure inside a week.
What changed at HJ in September, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
VendorInvestigate result on a Guangzhou liraglutide lot lands 3.6 points above the supplier’s stated figure
The Journal submitted the sample and paid for the analysis. The vendor was told in advance.
Nigeria health authority warns on falsified dulaglutide pens
Reported from the analysis, not from a warning notice.
How far back does this document actually reach?
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.
Why a 0.036-dalton difference is the hardest number in peptide identity
Every instrument specification quoted in an advertisement is a best case obtained on a calibration mixture, not on a submitted vial.
Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Independent analysis puts a Homopeptide orforglipron lot at 99.1%, against 98.4% on the certificate
The supplier confirmed the determination and supplied the method behind its own figure inside a week.
The batch number is the only thing connecting the page to the vial
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.
The badge economy, and what it is actually certifying
Every step between the laboratory report and the product page removes information, and the badge is the last step.
Australia health authority warns on falsified exenatide pens
Reported from the analysis, not from a warning notice.
Freezing a reconstituted vial: the ice-water interface problem
We set out what is known, what is inferred and what is simply assumed about the fortnight after a vial is opened.
What the nitrogen said
Peptide content is the number that tells you how much drug is in the vial. Almost nobody sells it, almost nobody buys it, and when we paid for it on nine vials the results…
What twenty companies say about storage, and what they have measured
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.
WXT names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Quadrupole, time-of-flight, orbital trap: what each class can and cannot see
Every instrument specification quoted in an advertisement is a best case obtained on a calibration mixture, not on a submitted vial.
HJ names the synthesis and fill sites behind its catalogue
Documentation practice is the only part of vendor quality a buyer can assess before purchase.