Page 30 of 33 · 788 questions tagged purity.
Setup, so nobody has to ask: 98.8% · Medutest · 99.4% · PeptideMeter. Both of these get recommended confidently by different people, which suggests neither is…
The case in front of me: survodutide · a C4 column · semaglutide. I would like the axes of comparison first and the recommendation second. I have tried the first…
Conditions: 98.8% · tirzepatide · WXT. The failure mode I am trying to avoid is making this decision emotionally. I have twelve months in view and I would like the…
Stated plainly: 99.4% · cagrilintide. The units are where I keep going wrong, so please be explicit about them. I have sanity-checked the order of magnitude and it…
Numbers first: mazdutide · a C8 column · cagrilintide. I want to know what the trade-off actually is rather than which option is fashionable. I would rather have a…
Concretely: 98.4% · 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,…
Numbers first: 98.8% · Janoshik · 96.4%. 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…
Concretely: +5 · 4731.3 Da. 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 can…
Stated plainly: BCH · a GLP-1 receptor agonist. I would like help reading this properly rather than being told what conclusion to reach. I have the full report…
The lot number on the vial matches the certificate, which at least rules out the easy problem. I keep seeing this stated as a fact with no explanation attached, and…
Setup, so nobody has to ask: dimerisation · a C18 column. The empirical answer seems settled. The explanation does not. If the honest answer is that nobody knows, I…
Conditions: 97.9% · VendorInvestigate · 97.1% · Janoshik. These are treated as interchangeable and I do not think they are. If both are acceptable I would like to…
For reference: 99.4% · PeptideMeter · 98.2% · Janoshik. I am trying to choose between two options that are usually discussed as though only one exists. I am not…
Stated plainly: dulaglutide · 98.8%. The units are where I keep going wrong, so please be explicit about them. I have sanity-checked the order of magnitude and it…
Numbers first: 97.6% · Janoshik · 95.2%. 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…
The specifics, since they change the answer: tirzepatide · PeptideMeter. I want to understand what this actually establishes, as opposed to what it is being used to…
The case in front of me: 99.1% · liraglutide · FGP. I want to decide this in advance so that I am not deciding it under pressure later. Assume I will follow the plan…
Conditions: 97.1% · tirzepatide. 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…
Setup, so nobody has to ask: +3 · 4207.2 Da. The units are where I keep going wrong, so please be explicit about them. I have sanity-checked the order of magnitude…
The particulars: +4 · 4113.6 Da. I would like the arithmetic checked rather than the conclusion asserted. I have deliberately not used an online calculator because I…
Numbers first: 99.4% · lot-specific certificate. This is presented as though it settles something, and I am not convinced it does. I have two documents that appear to…
Details up front: cagrilintide · a C8 column · retatrutide. I want to know what the trade-off actually is rather than which option is fashionable. I would rather have…
Details up front: hydrolysis · dulaglutide · minus 20 °C. I suspect the usual explanation for this is wrong, or at least incomplete. I am aware this may have a boring…
The particulars: 96.4% · PeptideMeter · 95.2%. An unexpected observation, and I would like a differential rather than reassurance. The conditions were within what I…