KD Scientific Centrifan PE - Manual (Page 14)

Chapter 1
1-4 Centrifan TM PE Personal Evaporator
1.3 Benefits of the Centrifan TM PE
The Centrifan TM PE system provides a number of benefits compared to commonly
employed methods of solvent operation, including:
• The centrifugal force obtained by rotation of the samples forces the solute to the
bottom of the collection vessel. In contrast, when a stream of gas is passed over the
sample, it is possible that solute will be distributed into the atmosphere. When the
Centrifan
TM
PE is employed, the dried sample remains in the bottom of the vial.
• If a blow-down apparatus is used, a significant amount of compressed air or an inert
gas is required. The Centrifan TM PE generates its own gas flow via the internal
centrifugal fan.
• If a blow-down apparatus is used, solvent vapor will be sent into the atmosphere. If
an organic solvent is employed, this may lead to environmental and/or regulatory
issues, even if the solvent is passed into a fume hood. The Centrifan
TM PE
condenses the solvent vapor in a cold trap and allows for safe disposal or recycling.
• A vacuum pump is not required, reducing both procurement and operating costs and
eliminating a major source of downtime in vacuum concentration systems.
• Prefreezing of samples, required by lyophilization, is not required when using the
Centrifan TM PE.
• The very small portable size of the Centrifan TM PE makes it suitable for flexible use in
virtually any one-square-foot space.
1.4 System Configuration and Accessories
The system can be configured with a variety of rotors to accommodate:
78-8400 6 x 20 mL Scintillation Vials
78-8404 6 x 30 mL Scintillation Vials
78-8405 4 x 40 mL Scintillation Vials
78-8401 8 x 1.6 mL Microcentrifuge Tubes
78-8403 8 x 4 mL (1 dram) Vials
78-8402 6 x 16mm x 100mm Test Tubes
78-8406 10 x 1.5mL HPLC Vials
The optional cold trap cover is no longer available, although in our experience, Parafilm
over the top of the trap with a small perforation may be just as effective at slowing the
evaporation rate of the alcohol or acetone being used in the trap.
1.5 Contents of this Manual
This Operator’s Manual contains:
• Installation (Chapter 2) - describes the facilities required for the system and how to
make the inert gas purge connections, if required.
• Operation (Chapter 3) - describes how to install and secure sample vials prior to
running.
• Maintenance and Troubleshooting (Chapter 4) - describes how to remove the
stainless liner for cleaning.