does retention time on its own tell you what

whats the void volume peak, is that always solvent

coming back after 10 months, what changed in how you read these

the honest position is that hobby-level interpretation of a chromatogram is worth something but not much

baseline is drifting badly, is that the column or the mobile phase

is monoisotopic or average mass the one on most certificates

does retention time on its own tell you what the compound is

i have had a lot where the mass was exactly right and the purity was 96.8. wrong question, right answer

why does integration change the number so much

two labs a point or two apart on the same lot is normal and gets mistaken for one of them being wrong constantly

oxidation is about plus 15.99 Da and is usually methionine or tryptophan

shallow gradients hide related substances behind the main peak. a steeper one separates and looks worse, honestly

thats co-elution