switched from 1.0mg to 0.5mg and the sulphur burps got better, not worse
I have had 22 orders now and I keep a table, so here is the honest summary rather than a vibe. Material has been consistent. Communication has not. Shipping has varied by about 12 days on nominally the same lane, which matters more in summer than in February. The independent number came back 99.0% against a claimed…
Strongly agree. Largest single impurity tells a different story than total purity.
That is net peptide content, not purity. Different number, different meaning.
the gradient is doing the separation work, not the column alone
chromatogram or it did not happen
Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.
Small correction: the trial was 7 weeks, not 29. Does not change your point but people will quote it.
This is the correct method framing. Column and gradient are load-bearing fields.
Not convinced. The evidence does not support that reading.
area% and mass% are not the same and this whole post conflates them
integration decision on a shoulder changes your number by half a point on its own
Detection wavelength? purity and that changes at different wavelengths.
area% and mass% are not the same and this whole post conflates them
Slight fix: the number was 97.6, not 95.1. Decimal point, but a fairly consequential one.