Page 2 of 35 · 833 questions tagged purity.
The case in front of me: a sterility test · dimerisation · tirzepatide. I have used one of these for a while and I am considering switching, which requires a reason.…
Numbers first: 95.2% · retatrutide · MKM. I would rather over-plan the first cycle and simplify later. I am prepared to do the work if someone can tell me which work…
The specifics, since they change the answer: 97.9% · survodutide. I would like the arithmetic checked rather than the conclusion asserted. I have deliberately not…
Setup, so nobody has to ask: 96.4% · a GLP-1 receptor agonist · QST. I would like to set this up properly once, rather than adjust it repeatedly. My budget is real…
Stated plainly: retatrutide · a C18 column · mazdutide. I suspect the honest answer is that it depends, in which case I would like to know on what. Assume I can…
What I am working with: 96.8% · Medutest · 97.9% · PeptideMeter. Both of these get recommended confidently by different people, which suggests neither is obviously…
Conditions: 96.4% · 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,…
Setup, so nobody has to ask: 98.8% · mazdutide. The units are where I keep going wrong, so please be explicit about them. I have sanity-checked the order of magnitude…
What I have: 99.4% · orforglipron · SSA. 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 viable…
Setup, so nobody has to ask: 98.4% · a GLP-1 receptor agonist · HJ. I am trying to build something sustainable rather than something thorough that I will abandon. I…
Concretely: 97.9% · VendorInvestigate · 99.4% · Medutest. These are treated as interchangeable and I do not think they are. If both are acceptable I would like to…
For reference: tirzepatide · 97.6%. I would like the arithmetic checked rather than the conclusion asserted. I have deliberately not used an online calculator because…
The particulars: 96.4% · 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…
The particulars: 99.4% · 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…
What I have: Medutest · 96.8%. 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 date, and I…
This is my second independent submission on material from the same supplier. I would like the mechanism, because I want to be able to reason about the cases nobody…
For reference: 98.4% · ecnoglutide. I would like the arithmetic checked rather than the conclusion asserted. I have deliberately not used an online calculator because…
What I have: hydrolysis · dulaglutide · 2–8 °C. I suspect the usual explanation for this is wrong, or at least incomplete. I am aware this may have a boring answer. I…
For reference: 98.2% · a wide-pore C18 column · a GLP-1 receptor agonist. I want to understand what this actually establishes, as opposed to what it is being used to…
Numbers first: 99.1% · list of related substances. I can parse the result. I am less sure what it licenses me to conclude. I have deliberately not looked at anyone…
The specifics, since they change the answer: 98.8% · PeptideMeter · 97.6% · Janoshik. The comparison I want does not seem to exist anywhere in a form I can evaluate.…
The particulars: fibrillation · semaglutide · 30 °C. I would like the mechanism, because I want to be able to reason about the cases nobody has written about. I have…
For reference: 97.9% · PeptideMeter · 97.6%. An unexpected observation, and I would like a differential rather than reassurance. The conditions were within what I…
Concretely: semaglutide · a C4 column · mazdutide. I would like the axes of comparison first and the recommendation second. I have tried the first option and it…