do test results actually matter or is it forum lore at this point
Question in the title, detail here: do test results actually matter or is it forum lore at this point.
Have now spent more on testing than on some of the orders. No regrets — the log is the reason I can buy without agonising.
What a result posted here is actually worth, and how to make yours worth more.
A single figure with no batch identifier is about a vial nobody can locate. Add the batch and it becomes about a lot. Add the claimed figure from the certificate and it becomes a comparison. Add the service and the date and it becomes reproducible. Say that you paid for it yourself and it becomes independent.
Five extra fields, thirty seconds of typing, and the difference between a comment and a row in the log that will still be useful in three years.
Kept every report as a PDF with the batch in the filename. Two years in, it is the most useful folder I own.
Screenshot none of this. Read the whole thread, including the parts where I am told I am wrong.
best — the order this archive was captured in
Merged with the other thread on the same batch so the results sit together.
Did the vial lot match the paperwork lot?
Correction: that is the claimed figure, and the measured one is the higher of the two in your own screenshot.
Which service, and did you pay for it yourself?
split a vial across two services once and you will never argue about ground truth again
split a vial across two services once and you will never argue about ground truth again
clara_weiss is right that the band matters more than the peak. Consistency across lots is the finding.
Area percent and net peptide content are different measurements and most reports give one. Quote which, or the comparison downstream is meaningless.
Small fix — same supplier, different lot. The two rows in the log are not the same batch.
net peptide content if the report gives it, and say which you are quoting
net peptide content if the report gives it, and say which you are quoting
Disagreeing with this line: that gap is ordinary variance, not a contradiction between the lab and the certificate.
the trend across lots is worth more than any single figure
vendor, compound, batch, service, result — that is the template
Yes. Two services on the same batch is the strongest thing an individual member can produce, and it is not expensive.
Fourth lot from the same supplier in the log now and the band has been tight the whole way. That consistency is the actual finding.
Fourth lot from the same supplier in the log now and the band has been tight the whole way.
Agreed — and two services on one batch is the strongest thing any of us can produce individually.
How many separate lots does your series cover?
How many separate lots does your series cover?
Adding the boring but useful bit: say whether you paid for it. It is the basis of the whole log.
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.
That reading assumes area percent and net peptide content are the same number. They are not, and the report says which it is.
Batch number and date of analysis?
Batch number and date of analysis?
This is why the template has a batch field. Without it the result is about a vial nobody can identify.
Right, and a point or two between services is ordinary. It is agreement, and every month somebody posts it as a scandal.
if you are going to test, test the thing you actually received
Agreed — the template exists because a result without the batch and the claim is unanchored.
the log is cumulative, that is the whole value of it
area percent unless the report says otherwise
I would not post that as a finding. It is a single result and the template asks you to say so.
GL Biochem came back 99.6% on a claimed 99.0%, which is agreement not a discrepancy
date of analysis matters as much as the number
- 1Merged with the other thread on the same batch so the results sit together.11 comments in this branch · started by u/peptidemeter_pat
- 2Agreed — the template exists because a result without the batch and the…6 comments in this branch · started by u/asks_dumb_questions