05-26-02 06:37
No 314417
Are TLC plates typically given a rating of some kind? If someone had something like Baker-flex silica gel IB2-F (1B2-F?) what does that refer to? They're 2.5 x 7.5 cm.
http://www.geocities.com/dritte123/PSPF.
The hardest thing to explain is the obvious
(Hive Addict)
05-26-02 07:53
No 314440
the f means flurocent (they glow in uv). The usual TLC plate made of an .1-.25mm silicagel 60 layer with a flurocent additive.
(Master Searcher)
05-26-02 14:58
No 314543
OK. Would something that is normally fluorescent show up on these plates in either short wave (hand held mineral light) or long wave (fluorescent black light), ie. something with a benzene ring or indole ring?
http://www.geocities.com/dritte123/PSPF.
The hardest thing to explain is the obvious
(Old P2P Cook)
05-26-02 15:51
No 314556
The organics will show up one way or another. Often the aromatic group will absorb the UV giving a dark spot but if the organics fluoresce themselves then it will likely be a different color from the green fluorescence of the TLC plate so they will still show up. Another quick way to visualize the organics on a TLC plate is to expose the plate to iodine vapour, the organic will absorb the iodine vapour causing a visible dark spot.