is retention time alone ever enough for identity

the retention time on its own means nothing across two labs. the relative order of the peaks means quite a lot, retention time is only a hint

ok that makes sense, thats a charge state

anyone got a rule of thumb for when a peak is baseline resolved enough

you need more sample for identity than for purity. plan for that when you post it, check the axes first

if you post a trace, post the axes. a chromatogram without a time axis is a shape, that is a chromatography answer, not a vendor one