Holograms, QR codes and other things that are not verification
Reported from the analysis, not from a warning notice.
Certificates of analysis
Page 30 of 51 of this archive, newest first.
Six words a verification badge would need to mean anything
What a verification mark would have to carry to be checkable: a date, a lot, a method, a submitter and a link to the report.
Five lines that would change what a certificate is worth
A reader holding a certificate can work out what it does not cover in about ninety seconds, and that is a useful ninety seconds.
What changed at BCH in February, and what the company will not say about it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Janoshik result on a Suzhou mazdutide lot lands 4.0 points below the supplier’s figure
The supplier has not disputed the finding. It has not explained the gap either.
Why a dead-clean sterile filter can pass pyrogen straight through
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.
JEEP declines, for the 23rd time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Nigeria health authority warns on falsified dulaglutide pens
Reported from the analysis, not from a warning notice.
Two decimal places on a single injection is a rhetorical choice
A result without a specification is a number. A specification without a result is a promise. Certificates in this market frequently carry one and not the other.
One measurement, twenty companies, forty compounds
A market that competes on one measurement will optimise that measurement. There are legitimate ways to raise a purity figure that involve no change to the product at all.
What changed at CPC 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.
Bacteriostatic water, sterile water, and the 0.9 per cent that makes the difference
Every degradation pathway accelerates by orders of magnitude on reconstitution, because the solvent that lyophilisation removed is the reagent most of them need.
A number without a suitability record is a number from an unknown instrument
System suitability is the set of checks demonstrating that the instrument and method were performing adequately when your sample was injected. It is recorded as a matter of…
Independent analysis puts a WWB survodutide 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.
Reproducibility, measured rather than assumed
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.
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.
WXT declines, for the 19th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
The word “confirmed” is doing an enormous amount of work on this certificate
An intact mass measurement establishes elemental composition, at best. The number of distinct sequences consistent with a given composition is astronomically large.
SGN 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.
What changed at SGN 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.