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c/coa·submitted 4 months ago by u/anya_moreau

water content — 5 things I got wrong before I got it right

COAbranch of 7 comments

Confession thread, sort of. I went from 0.25mg to 10mg much faster than I should have because the scale had stalled and I got impatient. The stall broke about 13 weeks later, at which point I had no way of knowing whether the dose increase did anything or whether it would have broken anyway. So now I have early…

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7 comments, started 4 months ago
u/fatima_wojcik368 points·4 months ago·edited

Four months on the site and I was confusing area% and mass% in every post I made. One explainer thread and it clicked.

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u/karma_irrelevant129 points·4 months ago

the counterion is part of the mass you paid for

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u/mikkel_correia100 points·4 months ago

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

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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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