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.
Peptide content
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How a claim degrades between the bench and the listing
Every step between the laboratory report and the product page removes information, and the badge is the last step.
One method is one opinion
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.
Assay against a standard, or area per cent: two different questions
We asked the four independent testing services what standards they run against and what suitability criteria they apply. The answers are printed.
From vial to bench: what is recorded and what is assumed
The condition on arrival is recorded by some services and not others, and it is one of the more informative lines in a report.
Reading a certificate as a document rather than as a score
The header identifies the batch, the table records the tests, and the footer says who is answerable. Two of the three are usually incomplete.
Check the vial, not the box
What happens to traceability when bulk material is subdivided, repackaged and relabelled two or three times before sale.
One measurement, twenty companies, forty compounds
The Journal has read several hundred certificates from twenty companies. The number is almost always there; the method behind it almost never is.
The sample is not the batch
A result on one vial generalises to a batch only if the vial was drawn in a way that makes it representative — and nobody records how it was drawn.
The impurity hiding underneath the parent peak
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.
How a claim degrades between the bench and the listing
Lot-level verification with a public report is a real and achievable thing. It exists in this market, on a minority of listings.
Six words a verification badge would need to mean anything
The Journal does not treat a badge as evidence and states so wherever it reports one.
Resolution, tailing, repeatability: the arithmetic before the result
Matching a retention time against a standard is evidence of consistency, not proof of identity. Two different species can elute at the same time on one method.
What counts as total, and who decided
We work through a single chromatogram twice, under two integration conventions, and show where the difference comes from.
Six words a verification badge would need to mean anything
A badge asserts that something was tested. It does not assert what, when, on whose sample, by what method, or whether the lot on sale is the lot that was tested.
What the paperwork is for, and who it was designed to protect
The purity figure is the least informative line on a well-constructed certificate and the only line most buyers read.
Why purity is the cheapest number to flatter
The Journal has read several hundred certificates from twenty companies. The number is almost always there; the method behind it almost never is.
Mass spectrometry answers a different question, properly
The most useful single addition to any purity determination is a second separation under a different pH or on a different stationary phase, and the second-most useful is a…
How a claim degrades between the bench and the listing
Every step between the laboratory report and the product page removes information, and the badge is the last step.
Where the solvent front ends is a decision, not a fact
Regulated pharmaceutical practice has explicit reporting, identification and qualification thresholds. This trade has none, which is why a purity figure carries no…