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Dialysis membrane Nalo, 66.0 mm, 100 m

From  Mann+Hummel
Material: cellulose, regenerated.
MWCO
Surface width
Packaging


Suitable for laboratory experiments. MWCO approx. 10,000-20,000 daltons. Packaged dry on roles, glycerine content approx. 21%.
Product details

€258.00/Pack Qty. 

excl. VAT. | 1 unit(s) per Pack Qty.

Art. No. 5102.2

In procurement
from 6 Pack Qty. €245.10/Pack Qty.
from 24 Pack Qty. €232.20/Pack Qty.

Product details

Material: cellulose, regenerated.

Suitable for laboratory experiments. MWCO approx. 10,000-20,000 daltons. Packaged dry on roles, glycerine content approx. 21%.



Dialysis membrane Nalo 

Not a medical device / Not an IVD product
Technical Information
MWCO ~ 10 000-20 000 dalton(s)
Surface width 66 mm
Ø 42 mm
Packaging type roll 
Dialysis membrane Nalo
Selected quantity:   0
  1. Subtotal:  0.00
Art. No. MWCO Surface width Packaging Pack Qty. Price Quantity
5104.1 ~ 10 000-20 000 Dalton 78,5 mm 25 m 1 unit(s)

€76.45

5102.1 ~ 10 000-20 000 Dalton 66 mm 25 m 1 unit(s)

€76.45

5101.2 ~ 10 000-20 000 Dalton 62,8 mm 100 m 1 unit(s)

€258.00

5101.1 ~ 10 000-20 000 Dalton 62,8 mm 25 m 1 unit(s)

€76.45

5104.2 ~ 10 000-20 000 Dalton 78,5 mm 100 m 1 unit(s)

€258.00

5102.2 ~ 10 000-20 000 Dalton 66 mm 100 m 1 unit(s)

€258.00

In stock
Available
In procurement
No longer available
Delivery date currently unknown
Selected quantity:   0
  1. Subtotal:  0.00

Downloads / MSDS

No documents available

General information

Microdialysis by Membrane Filter (Drop Dialysis)

Microvolumes of sample (5-100 μl) can also be dialysed by membrane filter discs made of cellulose mixed ester (pore size 0,025 μm, Art. No. CY35.1-CY37.1): Fill a Petri dish with dialysis buffer. Place the membrane filter disc on the surface of the solution (shiny side up, avoid bubbles under the filter) by using a stainless steel forceps. Float the membrane for ca. 5 min until it is completely soaked. Pipette the sample on the center of the filter. Due to the open pore structure of the membrane filter and the high surface-to-volume ratio the dialysis is done within a short time (mostly < 30 min). To avoid evaporation of the sample seal the Petri dish tightly during the procedure. In this way the sample volume remains nearly constant.


Filling volume for 15 cm tube length

Broadth (mm) 8 10 12 18 25 32 40 45 50 76 100 120
Tube Ø (mm) 5 6 8 11 16 20 25 29 32 48 64 76
Filling volume (ml) 3,1 4,8 7 15 30 49 76 97 119 276 478 688

Attention:

Do not tie knots in regenerated cellulose. Closure clips must be used to avoid any changing of membrane or MWCO.


Appearance of dialysis membranes

Dry dialysis membranes have different appearances, dependent on pore size and wall thickness: Clear, opaque or even completely white.

Reason:

Larger MWCO membranes are made slightly thicker to maintain membrane strength when the pores are larger.

The thicker the membrane and larger the pores, the more opaque. So the different membranes look as follows:

Dry membranes with MWCO

100-1000: clear

3 500-5 000: mostly clear

8 000-10 000: slightly opaque

20 000-50 000: opaque

≥100 000: white.

When the membrane is wetted with water the effect dissapears and the membrane becomes more clear.