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efficacy of Bentonite for alkaloid separations
I am curious as to whether or not one could use food grade bentonite for chromatographic separation ... |
28-10-2011 at 15:11
by: resveratrol |
Voltage varying centrifuge problem
So...I emailed the manufacturer. Turns out I can trade my unit in for a refurbished variable speed ... |
4-10-2011 at 16:23
by: resveratrol |
chem GRE
thanks!
still trying to decide which GRE to take.... the chemistry or the biochemistry & mole ... |
30-9-2011 at 14:06
by: resveratrol |
chem GRE
can someone recommend a good textbook for brushing up on topics (i.e. organic, inorganic, anaytical ... |
29-9-2011 at 16:06
by: resveratrol |
Bad days in the lab or with glassware?
i remember one time in undergrad organic lab, i had just recrystallized something from toluene I th ... |
23-9-2011 at 18:05
by: resveratrol |
Best and worst smelling chemicals?
didn't have the patience to read past page 2, but...
butanol!!!....and 2-mercaptoethanol is prett ... |
23-9-2011 at 15:28
by: resveratrol |
Voltage varying centrifuge problem
So if 15mins @ 717 RPM is ideal....that's:
(717rpm) x (15min) = 10,755 rotations
(3365rpm) X = ... |
23-9-2011 at 13:04
by: resveratrol |
Voltage varying centrifuge problem
Lol, you are silly!
if only there were a simple solution around this problem. maybe if I turn my ... |
22-9-2011 at 16:36
by: resveratrol |
Voltage varying centrifuge problem
Yeah I was looking into those variable frequency drives, but shit....for that price I could buy anot ... |
22-9-2011 at 15:23
by: resveratrol |
Voltage varying centrifuge problem
Damnit.
Damnit.
and you're right about gravity heh, not sure what I was thinking. The lower G ... |
22-9-2011 at 07:32
by: resveratrol |
Voltage varying centrifuge problem
This is my centrifuge http://www.spectraservices.com/Merchant2/pdf/Drucker_642E_Rev2.3.pdf
@not_ ... |
22-9-2011 at 05:50
by: resveratrol |
Voltage varying centrifuge problem
My centrifuge is 3365 RPM, the radius of the rotor is 12.5cm (factory default)....it operates at 115 ... |
21-9-2011 at 18:09
by: resveratrol |
chromatography and adsorbent properties
So as far as I know silica is acidic, and alumina can be obtained in three different grades - basic, ... |
25-2-2011 at 10:21
by: resveratrol |
TEA from DMF?
[rquote=192070&tid=14818&author=not_important]Let us see
Me2NCOH => Et3N
not ... |
7-11-2010 at 06:54
by: resveratrol |
TEA from DMF?
Hi,
I have some old DMF which reeks of triethylamine - I was hoping to distill the TEA off for la ... |
6-11-2010 at 17:28
by: resveratrol |
