Usually, they use HPLC (high pressure liquid chromatography), which uses a solvent and packed diffusion columns.

You don't have to stop at the gas phase.

https://en.m.wikipedia.org/wiki/Inductively_coupled_plasma#A...

if it can survive phase transition untouched. otherwise, if there'd be a chemical change, you'd be looking at something new.

I apparently have watched too much explosions & fire / extractions & ire, because my immediate thought on seeing the parent comment was that "yeah, it's gonna decompose before it vaporizes, and if it's hypergolic with itself that'll be fun"

Apparently, watching an Aussie with a backyard shed full of mysterious chemicals and reagents has me assuming that any mysterious, unmarked liquid that needs to be identified is probably explosive.

How the hell could chromatography even work for him when everything is yellow?

well, given the right conditions and enough heat...

AFAIU most methods of spectroscopy work by measuring the atomic composition of the materials anyways not the exact structure and bonds so a chemical change shouldn't matter much.

that'd make sense

Different components might vaporise at temperatures.

If you heat water and alcohol to 80°, measurements would indicate ~100% alcohol.

You won’t know the right temperature unless you know what substance it is.

Edit: I guess you might also have stuff which reacts below their vaporising temperature.

Every phase transistion (or phase change) of a molecule alters its emission lines, at least as detected by gas chromatography equipments.

Man, the next Vessyl is going to be intense...

You could taste it.

But working on a good dog interface is the way to go.