Page 13 of 33 · 788 questions tagged purity.
Conditions: 96.4% · VendorInvestigate · 98.2%. I have two candidate explanations and no way to distinguish them. The same procedure has worked without incident…
Stated plainly: 95.2% · a C18 column · survodutide. I have read the primary source rather than the summary, which has left me with more questions. I understand the…
What I have: 99.1% · retatrutide. I can do the algebra. I am not confident about the conversion factors. If there is a standard way to lay this out, I would rather…
For reference: 96.8% · semaglutide. I would rather understand the derivation than memorise the outcome. Two people I asked gave two answers that differ by a factor of…
The particulars: 98.8% · PeptideMeter · 96.4% · Janoshik. The comparison I want does not seem to exist anywhere in a form I can evaluate. I have read the arguments…
What I am working with: an endotoxin test · racemisation · survodutide. I suspect the honest answer is that it depends, in which case I would like to know on what.…
The specifics, since they change the answer: 96.4% · PeptideMeter · 97.9% · Janoshik. The comparison I want does not seem to exist anywhere in a form I can evaluate.…
For reference: 97.1% · PeptideMeter · 96.8% · Medutest. I am trying to choose between two options that are usually discussed as though only one exists. I am not…
The specifics, since they change the answer: 98.4% · PeptideMeter · 98.2% · PeptideMeter. The comparison I want does not seem to exist anywhere in a form I can…
Stated plainly: 97.6% · Medutest · 98.2%. I noticed this today and I have not touched anything since, in case the state is diagnostic. I have not discarded anything…
Setup, so nobody has to ask: dulaglutide · Medutest. I have read the primary source rather than the summary, which has left me with more questions. I understand the…
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 method section is present, which is unusual enough that I want to make use of it. I have worked this out and I would like someone to find the error, because I…
Conditions: 98.2% · method section. The figures are clear enough; the question is what they mean and what they do not. I can supply the numbers if the specifics…
Conditions: PeptideMeter · 98.4%. 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 whether this is…
What I have: 97.9% · Janoshik · 99.1%. I have a result I cannot explain, and I would rather diagnose it than guess. I have checked the obvious explanations and…
Stated plainly: 99.1% · Medutest · 95.2% · PeptideMeter. Both of these get recommended confidently by different people, which suggests neither is obviously right. My…
The method section is present, which is unusual enough that I want to make use of it. I want to know whether this is a real physical effect or an artefact of how it…
What I am working with: 96.4% · Medutest · 97.1%. This is not behaving the way I expected and I want to understand the discrepancy before I act on it. I have…
Details up front: mazdutide · Janoshik. This is presented as though it settles something, and I am not convinced it does. I have two documents that appear to…
What I have: 97.1% · orforglipron. This should be a straightforward calculation and I keep getting two different answers. The numbers are arbitrary; the method is…
Details up front: hydrolysis · retatrutide · 4 °C. I suspect the usual explanation for this is wrong, or at least incomplete. I am aware this may have a boring…
Conditions: 97.1% · method section. The figures are clear enough; the question is what they mean and what they do not. I can supply the numbers if the specifics…
The particulars: oral semaglutide · a wide-pore C18 column · tirzepatide. The comparison I want does not seem to exist anywhere in a form I can evaluate. I have read…