Page 5 of 35 · 833 questions tagged purity.
Details up front: 99.4% · dulaglutide · QYB. This is a planning question. I know what my options are; I do not know how to weigh them. What I want is the minimum…
Conditions: 97.6% · 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,…
What I have: 97.1% · retatrutide. This should be a straightforward calculation and I keep getting two different answers. The numbers are arbitrary; the method is what…
Conditions: 97.1% · VendorInvestigate · 95.2%. I think I have a problem. I am not yet sure whether it is a real problem or a measurement artefact. I want to know…
Conditions: ecnoglutide · 99.1%. 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 as the…
The particulars: 99.1% · chromatogram. I want to understand what this actually establishes, as opposed to what it is being used to imply. My concern is that I am…
Details up front: a GLP-1 receptor agonist · Janoshik. I can parse the result. I am less sure what it licenses me to conclude. I have deliberately not looked at…
Conditions: GGPeps · ecnoglutide. I want to understand what this actually establishes, as opposed to what it is being used to imply. My concern is that I am being…
Stated plainly: 99.4% · Medutest · 96.8%. This is not behaving the way I expected and I want to understand the discrepancy before I act on it. I have photographed the…
The specifics, since they change the answer: 97.6% · PeptideMeter · 98.8%. An unexpected observation, and I would like a differential rather than reassurance. The…
Details up front: 96.8% · a C8 column · liraglutide. This is presented as though it settles something, and I am not convinced it does. I have two documents that…
The specifics, since they change the answer: 95.2% · PeptideMeter · 97.6% · Janoshik. The comparison I want does not seem to exist anywhere in a form I can evaluate.…
Stated plainly: 99.4% · Medutest · 96.4% · PeptideMeter. Both of these get recommended confidently by different people, which suggests neither is obviously right. My…
I have both a purity figure and a content figure, which is why the discrepancy is visible. I can predict the outcome but I cannot explain it, which means I will get…
I have the report as a PDF with the chromatogram on page two, so I can quote specifics. This is presented as though it settles something, and I am not convinced it…
This is my second independent submission on material from the same supplier. I can find plenty of assertions about this and almost no reasoning, which is usually a…
Concretely: 99.4% · liraglutide. Please show the division. I want to check my own against yours. I would like the general form as well as the specific number, so I…
The case in front of me: 98.4% · VendorInvestigate · 98.8%. I have two candidate explanations and no way to distinguish them. The same procedure has worked without…
Setup, so nobody has to ask: 96.8% · mazdutide. I have worked this out and I would like someone to find the error, because I suspect there is one. My working so far,…
Concretely: 96.8% · a C4 column · dulaglutide. 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…
Stated plainly: Janoshik · 97.9%. I noticed this today and I have not touched anything since, in case the state is diagnostic. I have not discarded anything yet, so a…
The particulars: liraglutide · a wide-pore C18 column · semaglutide. The comparison I want does not seem to exist anywhere in a form I can evaluate. I have read the…
Numbers first: 98.4% · retatrutide. This should be a straightforward calculation and I keep getting two different answers. The numbers are arbitrary; the method is…
Concretely: oxidation · oral semaglutide · 30 °C. I want to know whether this is a real physical effect or an artefact of how it is measured. What prompted the…