| We make
a wide range of glassware for rotary evaporators (rotovap) and
lyophilization. In
addition to standard glassware for Buchi, Heidolph, Virtis,etc., we have developed
specialty glassware to address the needs of our various clients. We would be
happy to address yours as well.
For a description
of the process, see Operation
of the Rotary Evaporator.
| Condensers
for rotary evaporation
We manufacture
(and
repair) condensers for all varieties
of rotovap equipment, both dry ice coldfinger and coil condensers.
We can also customize them to your needs. We normally plastic
coat the bodies for safety. There are more pictures in the
gallery. |
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| Rotary
evaporator traps
We manufacture "bump traps" in a variety of sizes and
configurations. The most common are based on a 250 ml round
bulb, with the inside tube coming up from the male joint.
Usually we provide drain holes. Many other choices are available.
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Flying
saucer trap
A popular style is the so-called "Flying saucer trap" whose
body is a seriously oblate spheroid, providing a large enough
trap volume while shortening the overall length. This allows
the use of larger recovery flasks in your evaporator.
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One and
two liter receivers
We manufacture round bottom receivers for rotary evaporators.
The standard uses a heavy wall flask with a 35/20 socket joint
and plastic coating. A number of sizes are available.
Plastic coating is optional, and recommended.
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Machajewski
adapter
The Machajewski adapter allows direct evaporation from 20
ml vials. A 24/40 female joint is sealed to an open tube
with a stopper to close the bottom. The vial can be slid
into the adapter, evaporated, and slid out without removing
the adapter from the evaporator. This was designed at the
suggestion of Tim Machajewski of Novartis.
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Vial adapters
We also make vial adapters to connect directly to threaded
vials, consisting of a 24/40 female joint sealed to a
20 mm thread, and a Teflon/screwcap connector to match
your vial or testtube thread.
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Rotovap
cleaner
The rotovap cleaner assists you in cleaning out the gunk
that accumulates in the vapor duct and head of your rotary
evaporator. With the rotation stopped, connect the cleaner
to the vapor duct with the stopcock closed. Add solvent to the funnel, turn
on the vacuum, then open the stopcock. The solvent will
burst through the vapor duct into the head, cleaning out
the residues.
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Lyophilizer
adapters
Lyophilizer adapters connect your flasks and vessels to
the lyophilizer manifold. We make ours in a variety of
styles: straight tubes, bent tubes, taper joint to tube
adapters, joint to hose barb adapters, with and without
fritted filters inserted for protection of your pump.
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Foam/powder
stops
We make a variety of adapters with extra coarse frits inserted,
to prevent foam and/or powder from contaminating the rotovap
or lyophilizer pump. These can be as simple as a set of
two joints with the frit interposed, or a frit sealed into
the bump trap itself, or into a lyophilizer adapter.
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