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Lab Filtration

Lab Instrument

Ultrafiltration Membrane Selection Guide

Table1. High Flux

Membrane Name	MS®5	MS®8	MS®10	MS®30	MS®50
NMWL Cuttoff	5 kiloDalton	8 kiloDalton	10 kiloDalton	30 kiloDalton	50 kiloDalton
Membrane Material	Polyethersulfone	Polyethersulfone	Polyethersulfone	Polyethersulfone	Polyethersulfone
Support Material	Polyolefin Nonwoven	Polyolefin Nonwoven	Polyolefin Nonwoven	Polyolefin Nonwoven	Polyolefin Nonwoven
Dextran Retention	90% at 10 kD	90% at 18 kD	90% at 15 kD	90% at 70 kD	90% at 95 kD
Thickness	280 microns	280 microns	280 microns	280 microns	280 microns
Air Permeability	0 at 30 psi	0 at 30 psi	0 at 30 psi	0 at 30 psi	0 at 30 psi
Water Flux	3.5 lmh/psi	10 lmh/psi	27 lmh/psi	37.5 lmh/psi	47.5 lmh/psi
pH range	1–14	1–14	1–14	1–14	1–14
Max Operating Temp	80 °C	80 °C	80 °C	80 °C	80 °C
Max Width	15 inches	15 inches	30 inches	30 inches	30 inches
Standard Length	400 feet	400 feet	400 feet	400 feet	400 feet

Table2. Maximum Retention / Lowest Binding

Membrane Name	MS®Ultracel 5 kD	MS®Ultracel 8 kD	MS®Ultracel 10 kD	MS®Ultracel 20 kD
NMWL Cuttoff	5 kiloDalton	8 kiloDalton	10 kiloDalton	20 kiloDalton
Membrane Material	Regenerated Cellulose	Regenerated Cellulose	Regenerated Cellulose	Regenerated Cellulose
Support Material	UHMW Polyethylene	UHMW Polyethylene	UHMW Polyethylene	UHMW Polyethylene
Dextran Retention	90% at 5 kD	90% at 8 kD	90% at 5 kD	90% at 10 kD
Average Thickness	130 microns	200 microns	130 microns	130 microns
Air Permeability	0 at 70 psi	0 at 70 psi	0 at 70 psi	0 at 70 psi
Ave Water Flux	1 lmh/psi	3.5 lmh/psi	4.2 lmh/psi	9 lmh/psi
pH range	2–13	2–13	2–13	2–13
Max Operating Temp	80 °C	80 °C	80 °C	80 °C
Max Width	13 inches	13 inches	13 inches	13 inches
Standard Length	350 feet	350 feet	350 feet	350 feet

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