Ultracentrifugation Catalog

Reference

Support Services

Guide to Centrifuge Selection..........................................................................4-2 How To Choose a Rotor The Importance of k Factor...............................................................................4-4 Rotor Material.............................................................................................................4-4 Swinging-Bucket (SW) Rotors..........................................................................4-4 Fixed-Angle (FA) Rotors......................................................................................4-4 Vertical-Tube (VT) Rotors..................................................................................4-4 NVT Near-Vertical Tube Rotors....................................................................4-4 Continuous-Flow/Zonal Rotors.......................................................................4-4 Particle Separation in SW, FA, NVT and VT Rotors.........................4-5 Preparative Ultracentrifuge Rotor Recommendations for Key Applications.................................................................................................4-6 Gradient Materials .......................................................... 4-7 Commonly Used Gradient Materials with Their Solvents.............................................................................................................4-8 Density, Refractive Index, and Concentration Data—CsCl at 25°C...............................................................................................4-9 Density, Refractive Index, and Concentration Data—Sucrose at 20°C......................................................................................4-10 Density Conversion for Cesium and Rubidium Salts at 20°C.............................................................................4-11 Useful Formulas........................................................................................................4-12

Field Service Support............................................................................................. 5-2 Field Rotor Inspection Program.......................................................................5-2 Rotor Safety Seminars........................................................................................... 5-2 On-Site Rotor Inspection and Maintenance............................................5-2 A Comprehensive Approach to Centrifuge System Care....................................................................................... 5-2

Beckman Coulter Ultracentrifuge

iii