Three things required to make fire.
You’ve got one.
I don’t recommend deliberately adding a second.
In case you accidentally generate the third.
I suggest nitrogen. Which CAN be reused if you’re clever…
Edit: cheapest method is gravity.
Watch some actual chromatography videos to see how it’s done…Eg this one from MIT https://m.youtube.com/watch?v=B_QyhG2-VBI
And for the others not aware: MIT Open Source Classes