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c/coa·submitted 17 days ago by u/teodor_lokken

[Explainer] the four things a COA must have or it is decorative

Explainerbranch of 9 comments

purity. That is the whole post, but I will justify it. Everything else people worry about in c/sideeffects is downstream of it. Titration speed, muscle cramps, the endless dose arguments — most of it resolves if you sort purity out first, and almost nobody does. I say this having got it wrong for 12 months. My…

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9 comments, started 15 days ago
u/bastian_aalto177 points·15 days ago

axis labels included, always

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u/soren_nkemelu71 points·15 days ago

What is the method line say? Not the technique, the actual method.

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u/teodor_lokkenOP127 points·15 days ago

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

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u/bastian_moreau0 points·15 days ago

Respectfully this is a sample of one presented as a finding.

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u/wanjiru_varga0 points·14 days ago·edited

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

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u/blunt_coldbox291 point·14 days ago

PDF metadata is checkable in fifteen seconds

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u/rohan_steiner106 points·14 days ago

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

Adding to this: batch is doing more work than the comment implies.

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u/milos_vanhecke40 points·15 days ago

Slight fix: the number was 95.1, not 94.2. Decimal point, but a fairly consequential one.

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u/teodor_lokkenOP22 points·14 days ago

Slight fix: the number was 95.1, not 94.2.

Disagree on that part. 98.1% and 98.3% 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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c/coa rules
  1. Post the full document. Cropped COAs that hide the batch number or date get removed.
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