WHATMAN Anoporeâ„¢ Inorganic Membranes

CYTIVA
The Anopore inorganic membrane (Anodisc™) is excellent for a wide range of laboratory filtration applications. This material has a precise, nondeformable honeycomb pore structure, with no lateral crossover between individual pores, that filters at precisely the stated cut-off, allowing no larger sized particles to pass through the membrane. The Anopore inorganic membrane is composed of a high-purity alumina matrix that is manufactured electrochemically. The membrane also exhibits low protein binding, has minimal autofluorescence, is nontoxic, and supports cellular growth.

The precise pore structure and narrow pore size distribution of the Anopore membrane ensure a high level of particle removal efficiency. Microorganisms and particulate material are captured on the surface of the membrane for subsequent analysis by light or electron microscopy. When wet, the membrane is virtually transparent, which means that retained particles do not need to be transferred to another surface before microscopic examination.

The membrane is hydrophilic and is compatible with most solvents and aqueous material. No monomers, plasticizers, adhesives, surfactants or wetting agents are used in the manufacturing process, which removes sample contamination and ensures low protein binding and minimal loss of sample.

The Anopore membrane is supplied in the form of Anodisc membrane filters. The membrane is peripherally bonded to an annular polypropylene ring (except the 13 mm diameter disc) for ease of handling and is suitable for both vacuum and pressure filtration.

Anopore is available in three nominal pore sizes: 0.02 μm, 0.1 μm and 0.2 μm and in three diameters: 13 mm, 25 mm and 47 mm.

• Typical properties – Anopore inorganic membranes

 

Anodisc 13

Anodisc 25

Anodisc 47

Average membrane thickness

60 μm

60 μm

60 μm

Membrane diameter

13 mm

21 mm

43 mm

Membrane type

Anopore aluminum oxide

Anopore aluminum oxide

Anopore aluminum oxide

Support ring material

None

Polypropylene

Polypropylene

Construction process

N/A

Thermal weld

Thermal weld

Protein adsorption

Low

Low

Low

Burst strength

65-110 psi

-

-

Maximum service temperature

400°C

40°C

40°C

Porosity

25–50%

25–50%

25–50%

Autoclavable

Yes

No

No

 

• Ordering information – Anopore inorganic membrane circles (Anodisc)

Diameter (mm)

Membrane

Pore Size (µm)

Catalog Number

Hydrophilic

Protein binding

Solvent resistance

Quantity/pack

13

Anodisc 13*

002

6809-7003

Yes

Low

Very good

100

13

Anodisc 13*

0.1

6809-7013

Yes

Low

Very good

100

13

Anodisc 13*

0.2

6809-7023

Yes

Low

Very good

100

25

Anodisc 25

002

6809-6002

Yes

Low

Very good

50

25

Anodisc 25

0.1

6809-6012

Yes

Low

Very good

50

25

Anodisc 25

0.2

6809-6022

Yes

Low

Very good

50

47

Anodisc 47*

002

6809-5502

Yes

Low

Very good

50

47

Anodisc 47

0.02

6809-5002

Yes

Low

Very good

50

47

Anodisc 47

0.1

6809-5012

Yes

Low

Very good

50

47

Anodisc 47*

0.2

6809-5522

Yes

Low

Very good

50

* Without support ring

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