what would you tell week-1 you about certificate of analysis
Confession thread, sort of.
I went from 0.5mg to 12.5mg much faster than I should have because the scale had stalled and I got impatient. The stall broke about 17 weeks later, at which point I had no way of knowing whether the dose increase did anything or whether it would have broken anyway.
So now I have muscle cramps I did not need and a data point I cannot interpret. Two lessons in one.
Posting it in the hope that somebody at week 70 reads it before doing the same thing.
best — the order this archive was captured in
Crossposting this to c/scamalerts because the people who need it are not reading this community.
Yeah, 96.8% area is not the problem, the missing impurity breakdown is the problem.
Metadata check caught a COA that was created in a browser four months after the analysis date. Not evidence of fraud, but worth flagging to MKM.
What were the related substances listed individually?
This is the "correlation is mechanism" thing again. You changed three variables at once.
PDF metadata is checkable in fifteen seconds
the method line is doing real work, not just window dressing
Did they give you the chromatogram or just the summary line?
Batch number and date of analysis? Both are load-bearing.
Tracking number removed. It identifies both ends of a shipment.
Did they give you the chromatogram or just the summary line?
the method line is doing real work, not just window dressing
Water content on the document? That affects your concentration math.
area% is not mass%, and here is exactly why it matters
The COA I was holding said 96.8% area and I thought it was trash. Turns out the method was solid and the impurity profile was clean.
Water content was 3.8%, acetate was 6.2%, purity was 99%, but net peptide was only 90% of the label weight. Perfectly honest, just chemistry.
- 1Metadata check caught a COA that was created in a browser four months after…4 comments in this branch · started by u/hugo_bergstrom
- 2the method line is doing real work, not just window dressing4 comments in this branch · started by u/freya_baptista