Page 17 of 33 · 788 questions tagged purity.
What I am working with: a residual-solvent screen · hydrolysis · ecnoglutide. Both of these get recommended confidently by different people, which suggests neither is…
Stated plainly: ERP · a GLP-1 receptor agonist. I have read the primary source rather than the summary, which has left me with more questions. I understand the…
Stated plainly: 96.8% · Medutest · 97.6%. I noticed this today and I have not touched anything since, in case the state is diagnostic. I have not discarded anything…
Concretely: 98.2% · VendorInvestigate · 99.4% · Medutest. These are treated as interchangeable and I do not think they are. If both are acceptable I would like to…
What I have: 97.9% · purity figure. I can parse the result. I am less sure what it licenses me to conclude. I have deliberately not looked at anyone else’s…
Numbers first: 97.1% · Janoshik · 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…
Conditions: 96.4% · 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 specifics, since they change the answer: deamidation · ecnoglutide · 30 °C. I understand the observation; what I do not understand is the mechanism behind it. I…
What I have: an HPLC purity test · dulaglutide. I have used one of these for a while and I am considering switching, which requires a reason. What I care about is…
For reference: fibrillation · semaglutide · 40 °C. I would like the mechanism, because I want to be able to reason about the cases nobody has written about. I have…
Numbers first: 96.4% · orforglipron · 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 viable…
Numbers first: +2 · 4813.5 Da. This should be a straightforward calculation and I keep getting two different answers. The numbers are arbitrary; the method is what I…
Concretely: 98.2% · VendorInvestigate · 97.1% · Medutest. I would like the axes of comparison first and the recommendation second. I have tried the first option and…
The particulars: oral semaglutide · 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…
Stated plainly: 98.2% · cagrilintide · QST. I would like to set this up properly once, rather than adjust it repeatedly. My budget is real but not tight, and my…
Stated plainly: 97.6% · batch certificate. I have read the primary source rather than the summary, which has left me with more questions. I understand the headline. I…
Details up front: 96.4% · purity figure. I can parse the result. I am less sure what it licenses me to conclude. I have deliberately not looked at anyone else’s…
For reference: 96.4% · 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…
The particulars: 98.2% · PeptideMeter · 96.8%. Something has gone wrong and I would like to know how badly before I decide what to do. Nothing else in the setup…
For reference: 97.6% · a wide-pore C18 column · mazdutide. I want to understand what this actually establishes, as opposed to what it is being used to imply. My…
The particulars: 99.1% · PeptideMeter · 98.8% · Medutest. The comparison I want does not seem to exist anywhere in a form I can evaluate. I have read the arguments…
Concretely: survodutide · VendorInvestigate. The figures are clear enough; the question is what they mean and what they do not. I can supply the numbers if the…
The case in front of me: 96.4% · oral semaglutide. Please show the division. I want to check my own against yours. I would like the general form as well as the…
Concretely: 96.8% · VendorInvestigate · 98.2% · Medutest. I would like the axes of comparison first and the recommendation second. I have tried the first option and…