Anhydrous ethanol.

The radiation affects our silica relays.

So let's redraw your silica line in here.

Next, what you'd do is add in the silica.

We learned how to pack a column using cotton, sand, and silica gel.

On top, you have this fine layer that you're dropping in on top of silica gel.

This is now where your silica is, but as you see, the original green band has separated into two distinct bands now.

So in this case, let's say that our column was pretty crooked, what you would see instead, this is the silica line.

What you got is silica pathways to the brain, or whatever it is you call that thing you pretend to think with.

And as this proceeds, again you'll see the silica line, but the separation between the two bands will actually become more and more distinct.

Remember that the stationary phase is the silica gel or other material inside the column, and the mobile phase is the solvent that you pour into it.

The silica will take up most of your column, and you would be using that to fill almost all of it, just pouring it all in until it reaches a line of, say, about here.