05-30-04 03:25
No 510228
Whatman 1 PS Phase Separator Paper
The Whatman 1 PS Phase Separator is a high grade filter paper impregnated with a stabilised silicone that renders it hydrophobic, retaining the aqueous phase and passing the solvent phase through.
Automatic Cut-Off, Separatory Funnel Replacement
After being shaken, the mixed phases are simply poured directly into the 1 PS circle which is quadrant-folded in the funnel. The separation is extremely rapid so it is unnecessary to wait until the two phases have settled into separate layers. Droplets are automatically separated after only a few moments, giving a solvent phase completely free of the aqueous phase.
In many applications, 1 PS can replace the use of separatory funnels.
The solvent phase flows through the paper quickly and cleanly. It then stops automatically, leaving the aqueous phase completely in the paper. This feature is particularly important when carrying out a large number of routine solvent extractions at the same time. Samples can be shaken with solvent in stoppered conical flasks or test tubes and transferred directly to funnels containing 1 PS.
<< Apart from being incredibly handy for a/b's and sep funnel work; could these be used for the rapid drying of solvents? They seem confident they it captures ALL aqueous and only passes the solvent phase. Anyone used these?
(Hive Bee)
05-30-04 04:18
No 510231
hey.... i like....
well if the paper is 100% phobic it would work to dry solvents.... but i guess there would be a small leakage as with everything so running this filter, drying agent then the phobic filter again would make for a bloody quick way for phase sep.
Cool, yeah if anyone has used these can you speak up tell us what they are like and $?
Its just my opinion, but no-one listens to me anyway, and rightly so...
(Fragile ego)
05-30-04 08:32
No 510258
My guess is that it only works well with hydrophobic organics. I doubt it can be used for dehydrateing anything.
http://www.democracynow.org/ - The Exception to the Rulers
(Hive Bee)
05-30-04 12:30
No 510289
Well i'll be buggered, I have plenty of these things tucked away somewhere! I borrowed them off a friend because i ran out of filters for my buchner funnel
Well i'll be damned, thanks for posting!!
I'm a diamond that is tired, of all the faces i've aquired.
(Stoni's sexual toy)
05-30-04 14:22
No 510295
Not every filter paper made by Whatman is a phase separating paper.
BUSH/CHENEY 2004! After all, it ain't my country!
www.american-buddha.com/addict.war.1.htm
(Hive Bee)
05-30-04 14:49
No 510298
And to think i actually got excited about the prospect of not having to wait until phases seperated.
Oh well, better my bubble being burst now, as opposed to well you know..later
Either way, i will double check the packet and see whether they fit the description.
I'm a diamond that is tired, of all the faces i've aquired.
(Hive Bee)
05-31-04 11:18
No 510506
Whatman PS description (http://www.whatman.plc.uk/products/anal
It says complete seperation of phases but nothing about drying solvents, it would work well for phase sep which is described purpose.
However i dont think it would be a complete solution for drying solvents otherwise such a great feature would be listed on the page...
http://www.whatman.com/index2.html
Its just my opinion, but no-one listens to me anyway, and rightly so...
(Hive Adickt)
05-31-04 11:32
No 510511
For the 'usual' seperation Im sure Ill stic to my sep.funel. But from time to time you will have these nasty imulgation with no seperation at all. In that case these papers might be worth a lot. Ill odre som right awaye.