Instead, check out these kids pulling a really long TLC spotter.
This is a little silly, but seriously, it's one of the most therapeutic things to do in the world. Everything fades away in the light of that awesome heat.
See you on Monday.
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And folks wonder why chemists can't get hot girlfriends.
ReplyDeleteThe title should be The World's Most Useless TLC Spotter, given how thin it is.
Yeah, yeah, I know. Lighten up.
PS-I buy my TLC spotters, so there!
Since I am always limited by my own arm span when I make TLC spotters, it's pretty cool.
ReplyDeleteStewie Griffin says:
ReplyDeleteWho pulls/buys spotters anymore? After reading Kyle's blog several years ago I switched to using a 22G needle. Just gently remove the sharp tip (without actually closing up the needle) and presto! The grey 22G from Fisher are a bit longer than normal needles. I made up 4 of these bad boys in my 2nd year of grad school and they lasted the entire time.
Now if you need to spot a reaction and the needle won't reach the solution, then ok fine I'd pull a quick spotter.
I tried pulling spotters with a Bunsen burner the other day and failed miserably. I can only make wing-span-long ones with a Meker burner (like the people in the video have).
ReplyDeleteEventually, I found some capillaries in a drawer, and they worked fine. I'll probably never go back.
You can do it, but you need a really good blue flame (the little blue cone) from the Bunsen burner.
ReplyDeletemamid says...
ReplyDeleteWant a simple, easy to make and use spotter? One that would cost you less than a dime and maybe 5 minutes?
Check this:
J. Chem. Educ., 2011, 88(5), pp 673–674
DOI: 10.1021/ed1005932
@Chemjobber: or you need to find a glass tubing made from low-melting glass. Disposable Pasteur pipets work fine even with a propane-can torch. (but I find it easier to buy TLC capillaries by a pound, from Chemglass. For a really fine work I use Drummond microcaps, 4uL size. )
ReplyDelete@The Forum: Maybe it's just me, but the 9" Pasteur pipettes seem to yield "better" spotters than the 5-3/4" ones.
ReplyDeleteNow for the $1 question: What's your favorite way of snapping/cutting your spotter to get flat tips?