Page 10 of 20 · 476 questions tagged content-assay.
The case in front of me: GL Biochem · ecnoglutide. I want to understand what this actually establishes, as opposed to what it is being used to imply. My concern is…
What I am working with: 96.4% · cagrilintide · CPC. I am trying to build something sustainable rather than something thorough that I will abandon. I have already…
Setup, so nobody has to ask: 60 mg · cagrilintide. I have worked this out and I would like someone to find the error, because I suspect there is one. My working so…
Conditions: oxidation · liraglutide · 30 °C. I want to know whether this is a real physical effect or an artefact of how it is measured. What prompted the question is…
This is my second independent submission on material from the same supplier. I understand the observation; what I do not understand is the mechanism behind it. I have…
I am about to pay for quantification on a group of vials rather than just purity, having read enough here to understand why. Before I do, I want to know what I am…
Concretely: 98.4% · tirzepatide · BCH. The failure mode I am trying to avoid is making this decision emotionally. I have twelve months in view and I would like the…
Concretely: a quantified content assay · tirzepatide. I would like the axes of comparison first and the recommendation second. I have tried the first option and it…
Stated plainly: FGP · a GLP-1 receptor agonist. This is not behaving the way I expected and I want to understand the discrepancy before I act on it. I have…
The specifics, since they change the answer: a sterility test · retatrutide. This is a planning question. I know what my options are; I do not know how to weigh them.…
This is my second independent submission on material from the same supplier. I suspect the usual explanation for this is wrong, or at least incomplete. I am aware…
I have been through one internal appeal already and would like to do the next one properly. I suspect the usual explanation for this is wrong, or at least incomplete.…
This is my second independent submission on material from the same supplier. I suspect the usual explanation for this is wrong, or at least incomplete. I am aware…
Concretely: GL Biochem · survodutide. 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: racemisation · retatrutide · room temperature. I can predict the outcome but I cannot explain it, which means I will get the next case wrong. I would…
I am comparing a supplier certificate against an independent result on the same lot. I would like help reading this properly rather than being told what conclusion to…
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…
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…
The particulars: oral semaglutide · 6.67 mg/mL. I would like the arithmetic checked rather than the conclusion asserted. I have deliberately not used an online…
The case in front of me: a Karl Fischer water content test · liraglutide. I want to decide this in advance so that I am not deciding it under pressure later. Assume I…
What I am working with: 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…
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: a GLP-1 receptor agonist · 1 mg/mL. I can do the algebra. I am not confident about the conversion factors. If there is a standard way to lay this out,…