chromatogram: the version I wish someone had shown me in week 1
Right, the purity question again, but with numbers this time. I have 12 data points over 32 weeks. The pattern is consistent enough that I do not think it is chance, and boring enough that nobody is going to screenshot it, which is usually a good sign. The thing I would flag for anyone new: the effect I am describing…
Disagree but this is the good kind of wrong — it is specific enough to be checked.
state the method: column, gradient, detection wavelength, injection volume
two labs, two different baselines, two different purity numbers, both honest
Slight fix: the number was 98.1, not 98.0. Decimal point, but a fairly consequential one.
This is the correct method framing. Column and gradient are load-bearing fields.
Ran the same vial on two columns, different purity, both right, different separation. Method matters more than equipment.
Not to be pedantic but LC-MS and LC-MS are being used interchangeably and they are not interchangeable in real life.
Ran the same vial on two columns, different purity, both right, different separation. Method matters more than equipment.