Page 27 of 33 · 771 questions tagged coa.
The method section is present, which is unusual enough that I want to make use of it. I would like to know the limits of what can be inferred from this. What I am…
The case in front of me: survodutide · twelve weeks · minus 80 °C. I want to decide this in advance so that I am not deciding it under pressure later. Assume I will…
The case in front of me: ecnoglutide · twelve weeks · 25 °C. I want to decide this in advance so that I am not deciding it under pressure later. Assume I will follow…
The lot number on the vial matches the certificate, which at least rules out the easy problem. I have read the primary source rather than the summary, which has left…
The method section is present, which is unusual enough that I want to make use of it. I would like to know the limits of what can be inferred from this. What I am…
Stated plainly: dulaglutide · two weeks · 40 °C. I am trying to build something sustainable rather than something thorough that I will abandon. I have already decided…
Conditions: WXT · GL Biochem (Shanghai). Both of these get recommended confidently by different people, which suggests neither is obviously right. My constraints are…
The specifics, since they change the answer: CPC · liraglutide. The claim is plausible, which is exactly why I want to check it. I am able to read a paper if someone…
Setup, so nobody has to ask: a Karl Fischer water content test · tirzepatide. These are treated as interchangeable and I do not think they are. If both are acceptable…
The case in front of me: list of related substances · GGPeps. The figures are clear enough; the question is what they mean and what they do not. I can supply the…
The particulars: dulaglutide · batch certificate. I would like help reading this properly rather than being told what conclusion to reach. I have the full report…
The specifics, since they change the answer: tirzepatide · ten weeks · 2–8 °C. I would like to define my thresholds before I have a result, for obvious reasons. I…
I have both a purity figure and a content figure, which is why the discrepancy is visible. I can parse the result. I am less sure what it licenses me to conclude. I…
This is my second independent submission on material from the same supplier. I have the document in front of me and I can read the numbers. What I cannot do is…
For reference: 98.4% · PeptideMeter · 98.2%. Something has gone wrong and I would like to know how badly before I decide what to do. Nothing else in the setup…
Numbers first: 97.1% · 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…
What I have: CPC · an HPLC purity test. I want the working, not the result — I need to be able to redo it with different numbers. I care about the precision as well…
The particulars: SSA · an endotoxin test. I would like the arithmetic checked rather than the conclusion asserted. I have deliberately not used an online calculator…
What I have: Medutest · ChinaPeptides (QYAOBIO). I would like help reading this properly rather than being told what conclusion to reach. I have the full report…
I have both a purity figure and a content figure, which is why the discrepancy is visible. This is presented as though it settles something, and I am not convinced it…
Concretely: semaglutide · twelve weeks · minus 80 °C. I want to decide this in advance so that I am not deciding it under pressure later. Assume I will follow the…
Numbers first: 98.2% · Janoshik · 97.9%. I have a result I cannot explain, and I would rather diagnose it than guess. I have checked the obvious explanations and…
Details up front: BCH · peptide mapping. The units are where I keep going wrong, so please be explicit about them. I have sanity-checked the order of magnitude and it…
What I am working with: 98.4% · a C18 column · ecnoglutide. I would like help reading this properly rather than being told what conclusion to reach. I have the full…