[Lab] split one vial across PeptideMeter and VendorInvestigate — 99.0% and 99.1%
Short version of the title, which is already short: split one vial across PeptideMeter and VendorInvestigate — 99.0% and 99.1%. Longer version underneath. Since the title puts numbers in the shop window: 99.0% and 99.1%. What "documentation" actually means, since people use it to mean four different things in the…
What a batch record should carry: the lot identifier, the date of analysis, the method including column and gradient, the individual related substances rather than a total, and the storage condition the stability statement was written against.
Cosigning on lot matching. It sounds trivial and it predicts almost everything else about how an operation is run.
Independent testing is worth more than a supplied certificate for one structural reason: the chain of custody. A member who buys, ships and pays is testing the same thing you would receive.
buy small first, test it, then decide
buy small first, test it, then decide
This is the whole method in one sentence. Everything else in the thread is elaboration.
Small fix — the figure you quoted is the claimed purity from the certificate, and the independent result was the higher of the two.