Technical Note TD026EN Ver1.2 Cellufine PB -- 100 Cellufine PB can be used at high flow rates. Bed height [ % ] Linear flow rate [ cm/hr ] - ○ - 1800 The flow/pressure curve for a Cellufine PB column confirms operating flow rates above 1600 cm/h can be obtained. The compressibility of Cellufine PB is approximately 7%. 1600 90 1400 1200 80 1000 800 70 600 400 60 200 0 0.000 0.020 0.040 0.060 0.080 Pressure [ MPa ] 50 0.120 0.100 Relative capacity,Conalbumin [ % ] Fig1. Pressure-flow rate curve for Cellufine PB. Column: I.D. 9 cm, bed height: 38 cm Mobile phase: water Media particle size: 125-210 µm. 100 Cellufine PB is alkali stable 80 When stored in 0.5M NaOH for 600 hours at 30 ℃, the adsorption capacity of Conalbumin remained stable. When stored 1.0M NaOH for 600 hours at 30 ℃, adsorption of Conalbumin only decreased slightly. 60 40 0.5M NaOH at 30ºC 20 1.0M NaOH at 30ºC 0 0 100 200 300 400 time ( hours ) 500 600 Fig2. Stability of Cellufine PB under alkaline conditions at 30 ºC. Adsorption capacity of virgin media = 100 % Reletive Capacity,Conalbumon [%] 100 Cellufine PB is acid stable. When stored in 0.2M HCl for 3 months at 40 ℃, the adsorption capacity of Conalbumin remained stable. 80 60 40 20 0 0 1 2 3 time [ month ] Fig3. Stability of Cellufine PB under acidic conditions (0.2M HCl) at 40 ºC. Data: an average of 3 lots. TD026EN Ver1.2 (April 1, 2011) 1 Technical Note TD026EN Ver1.2 Relative capacity,Ovalbumin [ % ] 100 Cellufine PB performance remains constant over at least 200 operating cycles. 90 80 70 60 50 0 50 100 cycle 150 200 Fig 4. Stability of Cellufine PB at CIP. Flow rate: 1.5 CV/h at 25 ℃ Equilibrium buffer: 0.01M sodium phosphate, pH 7.0 + 0.15 M NaCl Regeneration solution: 0.5 M NaOH CIP: 1) equilibrium buffer 3 CV 2) regeneration solution 3 CV Relative capacity ,conalbumin [%] 100 Cellufine PB can be Autoclaved repeatedly. 80 60 Autoclaving is recommended in pure water . 40 20 0 0 2 4 6 Autoclave cycle 8 10 Fig 5. Change of adsorption capacity in Cellufine PB during autoclaving cycle. Conditions: pure water ,20 minutes at 121℃ Data: an average of 3 lots Cellufine PB conforms to USP28, Plastic Class V. 2-1, Otemachi 2-chome, Chiyoda-ku Tokyo 100-8105 Japan [email protected] TD026EN Ver1.2 (April 1, 2011) 2
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