Millipore Viresolve Pro VPMCPDKNB9 User manual

Viresolve®Pro
Micro Device
User Guide
Millipore, Viresolve and Milli-Q are registered trademarks of Millipore Corporation. The M
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Copyright © 2008 Millipore Corporation. All rights reserved.
00104257PU Rev A, 02/2008
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The information in this document is subject to change without notice
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Introduction
Viresolve Pro Micro Devices are typically used for process optimization,
viral clearance validation and filtration of small batch volumes of proteins.
This manual applies to the following devices:
Process Development
Kit Validation Kit
Catalogue No. VPMCPDKNB9 VPMCVALNB9
Color
Solid Teal Teal and White
Integrity
Testing Not Binary Gas Tested Binary Gas Tested
Primary
Intended Use
Process Development
Optimization, scale-up,
etc. Virus Validation
Installing the Device
Testing should be conducted with a user supplied pump at a constant
flow rate or a constant pressure. A low volume constant pressure holder
(Millipore Catalog number VIRUSVMAX or equivalent) is recommended
for constant pressure testing of Viresolve Pro devices. This user guide
provides instructions for conducting testing at a constant pressure. Contact
Millipore for instructions on testing at a constant flow rate.
Remove caps from all devices. Attach a two-way luer valve to both the1.
feed port (V1) and vent port (V2) of the device. Connect the feed vessel
to the luer valve on the feed port. Close both luer valves.
Position a filtrate2.
collection vessel and
a weighing balance
(to record filtrate
mass) beneath the
device. Fill the feed
vessel with at least
125 mL of
Milli-Q®water,
water for injection
(WFI) or equivalent.
Record the3.
temperature of the
fluid.
Purge the system by4.
following the device
purging sequence.
Purging the Device
Purging is recommended to remove air from the device before use.
Open V2. Open V1 until fluid begins to drain from V2 (approximately1.
five seconds).
Close V2. Close V1.2.
Figure 1. Typical setup
Feed Port
Balance/Weigh
Scale
Collection
Vessel
Feed
Reservoir
Outlet Port
Vent Port
V2 V1
Prefilter
(optional)

Filtering Product
Add the desired volume of protein to the feed vessel. Record the protein1.
temperature. Follow the purge procedure. Attach the air supply and
pressurize the feed vessel to 2.07 bar (30 psi).
Place a clean, empty collection vessel beneath the device outlet port on2.
the weigh scale. Tare the scale.
Open V1 and start recording the mass of the filtrate collected at desired3.
time intervals. Stop the process (close V1) when the target conditions
(e.g. volume, flux) have been reached.
Depressurize the feed vessel and remove the air supply.4.
Post-Use Buffer Flush
(Optional for Product Recovery)
Empty the protein from the feed vessel and replace it with approximately1.
10 mL of buffer. Attach the air supply and pressurize to 2.07 bar (30 psi).
Place a clean, empty collection vessel beneath the device outlet port on
the weigh scale. Tare the scale.
Open V1 and monitor the mass of filtrate collected. Stop the process2.
(close V1) when 3 mL of buffer is collected.
Depressurize the feed reservoir and remove from the air supply.3.
Empty the feed reservoir and the collection vessel. Purge the device
(see Purging the Device) and perform an integrity test.
Integrity Testing (Optional)
Note The device must be fully wetted with water or buffer before
performing this test.
The device filtration area is approximately 3.1 cm².
The diffusional flow rate is too low to measure
accurately, therefore a gross pass/fail integrity test is
recommended.
Place a beaker of water beneath the outlet port of1.
the device. Attach one end of the filtrate tubing to
the outlet port and immerse the other end in the
beaker of water.
Attach the air supply to the feed vessel. Open the2.
inlet air valve and pressurize the system to 0.3 bar
(5 psi). Open V1 and V2 to drain any liquid. Close V2. Increase pressure
to 3.5 bar (50 psi).
After five minutes have elapsed, watch for bubbles exiting the immersed3.
filtrate tubing. After observing for one minute, no bubbles should be
visible exiting an integral device.
Slowly release the pressure in the feed vessel and close V1.4.
Note Rapid depressurization after integrity testing may damage
the device.
Disconnect the device. If the device is integral, discard it. If the device5.
is not integral, store it in a beaker of 2 to 8° C water and notify your
Millipore representative.
Flushing and Wetting
Milli-Q water, WFI or equivalent is required to wet and flush the filters.
After purging the device, attach an air supply to the feed reservoir.1.
Pressurize the system to 2.07 bar (30 psi).2.
Tare the weigh scale.3.
Open V1 and start recording the elapsed time and the weight of the4.
filtrate collected. Record the weight every minute, for at least ten minutes,
until a stable flow rate is observed for three consecutive minutes. Close
V1 to stop the flow. Record fluid temperature. Calculate the temperature
corrected flow rate (Q25° C )for water (see Flow Rate Calculation).
Depressurize the system and remove the air supply. Empty the feed5.
vessel. Open V1 to ensure all liquid is drained from the device.
Close V1.
Measuring Buffer Flux
Fill the feed vessel with buffer. Record the temperature of the buffer.1.
Purge the device (see Purging the Device). Attach the air supply and
pressurize the feed reservoir to 2.07 bar (30 psi).
Place a clean, empty collection vessel beneath the device outlet port on2.
the weigh scale. Tare the scale.
Open V1 and start recording elapsed time and the mass of the filtrate3.
collected. Record the mass every minute for at least ten minutes. Close
V1 to stop flow. Record the fluid temperature. Depressurize the feed
reservoir.
Calculate the4. Q25° C for the buffer (see Flow Rate Calculation).
Empty the remaining buffer from the feed reservoir.5.
Flow Rate Calculation
Flow Rate at 25 °C and 2.07 bar (30 psi): 1.1 to 3.9 mL/min.
Calculate the temperature-corrected flow rate (Q25° C ) using the following
equation:
Q
25° C = Qp*F
Where:
Qpis the filtrate flow rate in mL/ min. (may assume a density of
1 g/cc for water to convert weight to volume)
F is the Temperature Correction Factor from Table 1.
Table 1. Temperature Correction Factor (F)*
T (°F) T (°C) F T (°F) T (°C) F T (°F) T (°C) F
104.0 40 0.734 82.4 28 0.935 60.8 16 1.243
102.2 39 0.748 80.6 27 0.956 59.0 15 1.276
100.4 38 0.762 78.8 26 0.978 57.2 14 1.310
98.6 37 0.777 77.0 25 1.000 55.4 13 1.346
96.8 36 0.793 75.2 24 1.023 53.6 12 1.383
95.0 35 0.808 73.4 23 1.047 51.8 11 1.422
93.2 34 0.825 71.6 22 1.072 50.0 10 1.463
91.4 33 0.842 69.8 21 1.098 48.2 9 1.506
89.6 32 0.859 68.0 20 1.125 46.4 8 1.551
87.8 31 0.877 66.2 19 1.152 44.6 7 1.598
86.0 30 0.896 64.4 18 1.181 42.8 6 1.648
84.2 29 0.915 62.6 17 1.212 41.0 5 1.699
*Based on Water Fluidity Relative to 25 ºC (77 ºF)
Fluidity Value F=
(μT ºC/μ25 ºC) or (μT ºF/μ77 ºF)
If the device does not meet the specification listed above, check the water
temperature and pressure and repeat the Q25° C measurement. If the value
falls outside the recommended range stated above, replace the device and
start over.
Note If the device does not meet specification, store in a beaker of
2 to 8 °C water and notify your Millipore representative.
Figure 2. Integrity Test