u/liv_nkemelu

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

PBS/TGA claims need the notice or schedule entry

Yeah, the Janoshik number matching the claim is the actual signal.

WWB / BPC / batch 17 / PeptideMeter / 98.4% — that is the shape

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

dosing errors come from people reconstituting two vials differently and forgetting which is which

reship and retest is the honest way to handle a low result

u-100 syringe, not u-40, or your math is off by factor of 20

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

unfunded-means-full-price is the NZ reality

never post a calculation as advice without stating the concentration

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

dead space is real and the syringe matters

Not to be pedantic but certificate of analysis and COA are being used interchangeably and they are not interchangeable in real life.

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

Yes, exactly this, and it is the bit that took me 53 weeks to accept.

show your working or it is unhelpful

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

Yeah, 96.8% area is not the problem, the missing impurity breakdown is the problem.

Disagree on that part. 93.7% and 99.3% on the same vial is normal.

testing the vendor claim versus testing your actual vial are two different posts

The evidence standard in c/vendorvetting gets called too strict about once a month, and every time, the thread ends with the complainant agreeing.

Reconstituted at 2mL when I meant 14mL. Caught it because the units looked wrong. Write the concentration.