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c/coa·submitted 1 year ago by u/step_therapy_s

[Discussion] we are measuring certificate of analysis at the wrong time and calling it noise

Discussionbranch of 6 comments

Posting this because I searched for it and got nothing useful. Setup: 12.5mg, week 79, sulphur burps present but not ruining anything. I changed exactly one variable — related substances — and tracked it for 12 weeks. Result: a difference, but a small one, and well inside what I would call noise if someone else…

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6 comments, started 1 year ago
u/karma_irrelevant12 points·1 year ago

Crossposting this to c/semaglutide because the people who need it are not reading this community.

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u/reflux_report3 points·1 year ago

area% is not mass%, and here is exactly why it matters

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u/certified_referenceQC15 points·1 year ago

the batch number or it did not happen

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u/freya_baptista7 points·1 year ago

redact your own name, not the vendor's batch details

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u/ismael_eriksen5 points·1 year ago

Crossposting this to c/semaglutide because the people who need it are not reading this community.

Disagree on that part. 98.1% and 98.4% on the same vial is normal.

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About c/coa

How to read a certificate of analysis and what it does and does not tell you. Area% versus mass%, identity versus quantity, water content, related substances, acetate counterions, and the difference between a vendor-supplied COA and an independent test on the vial you actually received.

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