Page 2 of 8 · 185 questions tagged reference-standard.
The particulars: liraglutide · 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 the…
Concretely: 97.6% · VendorInvestigator · 98.8% · Janoshik. These are treated as interchangeable and I do not think they are. If both are acceptable I would like to…
Numbers first: 96.4% · Janoshik · 98.8% · Medu Laboratories. I have used one of these for a while and I am considering switching, which requires a reason. What I care about is…
What I am working with: 97.6% · Medu Laboratories · 98.4% · Janoshik. I suspect the honest answer is that it depends, in which case I would like to know on what. Assume I can…
Concretely: ecnoglutide · a C4 column · tirzepatide. These are treated as interchangeable and I do not think they are. If both are acceptable I would like to know…
Concretely: 97.6% · VendorInvestigator · 99.1% · Medu Laboratories. I would like the axes of comparison first and the recommendation second. I have tried the first option and…
Conditions: ecnoglutide · a C4 column · retatrutide. These are treated as interchangeable and I do not think they are. If both are acceptable I would like to know…
The specifics, since they change the answer: 95.2% · PeptideDetective · 99.4% · Medu Laboratories. The comparison I want does not seem to exist anywhere in a form I can evaluate.…
This is my second independent submission on material from the same supplier. I can predict the outcome but I cannot explain it, which means I will get the next case…
The specifics, since they change the answer: 98.8% · PeptideDetective · 98.4% · Janoshik. I am trying to choose between two options that are usually discussed as though…
For reference: liraglutide · a wide-pore C18 column · tirzepatide. I am trying to choose between two options that are usually discussed as though only one exists. I…
What I have: a GLP-1 receptor agonist · a C8 column · retatrutide. I want to know what the trade-off actually is rather than which option is fashionable. I would…
What I have: 98.2% · Janoshik · 96.8% · Medu Laboratories. I have used one of these for a while and I am considering switching, which requires a reason. What I care about is…
The particulars: 97.1% · PeptideDetective · 99.4% · Medu Laboratories. I am trying to choose between two options that are usually discussed as though only one exists. I am not…
The case in front of me: ecnoglutide · a C4 column · survodutide. I would like the axes of comparison first and the recommendation second. I have tried the first…
The specifics, since they change the answer: 96.8% · PeptideDetective · 99.4% · Medu Laboratories. I am trying to choose between two options that are usually discussed as though…
I have the report as a PDF with the chromatogram on page two, so I can quote specifics. I understand the observation; what I do not understand is the mechanism behind…
The specifics, since they change the answer: 97.1% · PeptideDetective · 95.2% · Janoshik. I am trying to choose between two options that are usually discussed as though…
I am comparing a supplier certificate against an independent result on the same lot. This is one of those things that everyone repeats and nobody derives. This…
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…
Details up front: 95.2% · Janoshik · 97.6% · Medu Laboratories. I have used one of these for a while and I am considering switching, which requires a reason. What I care about…
Setup, so nobody has to ask: orforglipron · a C18 column · retatrutide. I suspect the honest answer is that it depends, in which case I would like to know on what.…
What I am working with: 99.1% · Medu Laboratories · 95.2% · PeptideDetective. I suspect the honest answer is that it depends, in which case I would like to know on what. Assume I…
What I have: 98.2% · Janoshik · 97.9% · PeptideDetective. I have used one of these for a while and I am considering switching, which requires a reason. What I care about…