purity — 8 things I got wrong before I got it right
Quick one. Canada here. chromatogram works very differently where I live than in the threads that dominate the front page, and I keep seeing people confidently given advice that simply does not apply outside the US. Specifics: the route I used took 24 weeks and cost roughly what I expected. The admin was worse than…
No. This is the kind of confident post that gets copied into a screenshot and repeated for years. Where is the evidence.
integration decision on a shoulder changes your number by half a point on its own
Small correction: the trial was 22 weeks, not 18. Does not change your point but people will quote it.
axis labels included, always
Did they post the raw trace or just the summary?
the detector wavelength matters more than people think
Injection volume and flow rate? Those affect resolution.
related substances are where the story lives, not the main peak
This is the correct method framing. Column and gradient are load-bearing fields.
two labs, two different baselines, two different purity numbers, both honest