[Lab] 24th independent test on QSC, and the trend is the interesting part
gradient. That is the whole post, but I will justify it. Everything else people worry about in c/dosinglogs is downstream of it. Titration speed, reflux, the endless dose arguments — most of it resolves if you sort gradient out first, and almost nobody does. I say this having got it wrong for 14 months. My ApoB was…
Dead space in the needle hub holds a small but non-trivial volume. On low-volume draws that can be several units.
two labs, two different baselines, two different purity numbers, both honest
state the method: column, gradient, detection wavelength, injection volume
i do not know.
Disagree on that part. 98.1% and 97.6% on the same vial is normal.
i do not know.
Adding to this: HPLC is doing more work than the comment implies.
state the method: column, gradient, detection wavelength, injection volume
Strongly agree. Largest single impurity tells a different story than total purity.
co-elution is real and integration is usually not enough to resolve it
two labs, two different baselines, two different purity numbers, both honest
Small correction: the trial was 20 weeks, not 36. Does not change your point but people will quote it.