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Amicon Stirred Ultrafiltration Cells

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1309

Amicon Stirred Ultrafiltration Cells
(Models 8050, 8400)
Description - Membranes - Assembly - Operation - Limits - Sterilization - Maintenance - Troubleshooting


Description

For protein concentration, gas pressure is applied directly to ultrafiltration cell. Solutes above the membrane's molecular weight (MW) cut-off are retained in cell, while water and solutes below the cut-off pass into the filtrate and out of cell.
 
  8050 8400
Cell capacity (ml)
Stirred minimum volume¹ (ml)
Membrane diameter (mm)
Effective membrane area (cm ²)
Hold-up volume² (ml)
50
2.5
43
13.4
0.5
400
10.0
76
41.8
1.5
Maximum operating pressure: 75 psi (5.3 kg/cm²)
Relief valve setting: 90 psi (6.3 kg/cm²)
Maximum diafiltration operating pressure: 55 psi (3.9 kg/cm²)
¹ Minimum working volume.
² Non-recoverable volume (below membrane surface).

Membranes


Assembly

  1. Place membrane in holder, shiny side up ; then place O-ring on top of membrane. Gently push O-ring down so that it contacts and seats membrane evenly in bottom of holder. Handle membrane by its edges to avoid scratching or contaminating surface.
  2. Fit membrane holder into cell body, aligning tabs on sides of holder with slots in base of cell body.
  3. Invert cell body and membrane holder; screw base firmly into bottom of cell body. A definite "stop" will be felt when base and body are fully engaged. Top of membrane holder will be flush with bottom of slots in cell body.
  4. Push filtrate exit tubing onto exit spout of membrane support.
  5. Place stirrer assembly into cell body. When properly installed, arms of stirrer assembly will rest on small ridge inside top of cell body.
  6. Introduce sample into cell.
  7. With a twisting motion, push cap down onto cell body, orienting gas inlet port on cap opposite filtrate exi

 

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