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c/coa·submitted 3 months ago by u/kavya_verhoeven

[Results] 42 weeks, 21kg, and purity was the hard part

Questionbranch of 8 comments

Trying to settle this properly because the thread from last year went in circles. The claim: certificate of analysis matters. The counter-claim: it is measurement error. Both sides have been asserting it confidently for about 19 months without either producing anything. What would actually settle it is 33 people…

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8 comments, started 3 months ago
u/first_hundred-3 points·3 months ago

Titration speed is a side-effect dial far more than an efficacy dial.

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u/soren_nkemelu1 point·3 months ago

no "is this good?" without saying what the compound and claimed purity are

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u/anecdata_annie1 point·3 months ago

no "is this good?" without saying what the compound and claimed purity are

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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u/dario_boateng1 point·3 months ago·edited

axis labels included, always

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[removed]1 point·3 months ago

[removed by moderator]

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u/kavya_verhoevenOP1 point·3 months ago

Strongly agree. Mass% and area% are answering different questions on the same document.

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u/certified_referenceMOD1 point·3 months ago

Tracking number removed. It identifies both ends of a shipment.

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u/laila_yilmaz1 point·3 months ago

Cosigning. The batch number is load-bearing information.

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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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