someone explain batch to me like I have not read a paper in years
Asking properly rather than in a comment on somebody else’s thread: someone explain batch to me like I have not read a paper in years.
Chain of custody is why member-funded testing is worth more than a supplied certificate: the vial tested is the vial that arrived at a member’s door.
BCH BPC, batch matched the paperwork, PeptideMeter came back 99.6% against a claimed 99.0%. Paid for it myself, posting it because the log is only worth anything if people do.
A series across separate lots estimates a process. Repeat tests on one lot estimate the measurement. Both are useful and they answer different questions.
Not medical advice, obviously, and nothing here is approved for human use. One person with a spreadsheet.
best — the order this archive was captured in
Inter-lab variance on this assay runs roughly a point either way, driven mostly by gradient and integration. Two results inside that band agree; they do not disagree quietly.
This. The trend across separate lots is the number that tells you about a process rather than a vial.
First result I ever posted here got asked for the batch number and the claim. Fair, and my posts have been better ever since.
First result I ever posted here got asked for the batch number and the claim.
Agreed — and two services on one batch is the strongest thing any of us can produce individually.
Sent a vial in specifically to check a supplier’s claim after a good experience. It matched. Boring result, worth logging.
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Have now spent more on testing than on some of the orders. No regrets — the log is the reason I can buy without agonising.
Tested three lots over a year rather than three vials from one lot. Cost the same and told me something completely different.