Page 6 of 32 · 749 questions tagged coa.
Setup, so nobody has to ask: 96.8% · Medutest · 98.8%. This is not behaving the way I expected and I want to understand the discrepancy before I act on it. I have…
The lane and the lead time matter as much as the material for what I am doing. I want a method I can write down and repeat, not a rule of thumb. I would rather…
What I am working with: a residual-solvent screen · cagrilintide. I suspect the honest answer is that it depends, in which case I would like to know on what. Assume I…
Stated plainly: 96.4% · a C18 column · ecnoglutide. I have read the primary source rather than the summary, which has left me with more questions. I understand the…
For reference: 97.6% · PeptideMeter · 95.2%. An unexpected observation, and I would like a differential rather than reassurance. The conditions were within what I…
Stated plainly: 99.1% · Medutest · 96.4%. This is not behaving the way I expected and I want to understand the discrepancy before I act on it. I have photographed the…
Numbers first: 99.4% · a C8 column · liraglutide. This is presented as though it settles something, and I am not convinced it does. I have two documents that appear…
The specifics, since they change the answer: QYB · ecnoglutide. I would like to know whether this claim survives contact with evidence. If the answer is "nobody has…
The case in front of me: ecnoglutide · method section. I would like to know the limits of what can be inferred from this. What I am trying to avoid is over-reading a…
Numbers first: 98.8% · a C8 column · tirzepatide. This is presented as though it settles something, and I am not convinced it does. I have two documents that appear…
Conditions: 99.4% · VendorInvestigate · 98.4%. I have two candidate explanations and no way to distinguish them. The same procedure has worked without incident…
Conditions: 96.8% · date of analysis. I would like to know the limits of what can be inferred from this. What I am trying to avoid is over-reading a single result,…
Stated plainly: 99.4% · Medutest · 96.4%. I noticed this today and I have not touched anything since, in case the state is diagnostic. I have not discarded anything…
Concretely: ecnoglutide · date of analysis. The figures are clear enough; the question is what they mean and what they do not. I can supply the numbers if the…
I would like to understand the process rather than be told to try harder. I have read the primary source rather than the summary, which has left me with more…
I am comparing three suppliers on documentation rather than on price. Everything I have found on this is either a forum aside or a product page, neither of which I…
The case in front of me: chromatogram · SSA. I would like to know the limits of what can be inferred from this. What I am trying to avoid is over-reading a single…
Conditions: QST · Shanghai Wibson Biotechnology. I would like the axes of comparison first and the recommendation second. I have tried the first option and it works;…
Details up front: KP · Shanghai ERP Biotechnology. I want to know what the trade-off actually is rather than which option is fashionable. I would rather have a…
The case in front of me: 99.1% · VendorInvestigate · 98.4%. I have two candidate explanations and no way to distinguish them. The same procedure has worked without…
Conditions: Homopeptide · Zhuhai Kerui Biotechnology. I would like the axes of comparison first and the recommendation second. I have tried the first option and it…
Numbers first: 97.6% · Janoshik · 98.8%. Before I write this off, I want to check whether it is a known failure mode. I have the lot number, the certificate and the…
I have certificates from two lots and an independent result on one of them. I can find plenty of assertions about this and almost no reasoning, which is usually a…
What I am working with: retatrutide · sampling plan. I have read the primary source rather than the summary, which has left me with more questions. I understand the…