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Ready-to-use Devices | Dialysis

Only Repligen offers ready-to-use devices with ultrapure membrane to provide excellent sample recovery and ultimate convenience - no need for closures, knots, buoys, pontoons, or weights.

HOW TRADITIONAL DIALYSIS WORKS

FLOAT-A-LYZER

The Float-A-Lyzer® is the ready-to-use laboratory dialysis device for 1 ml - 10 ml volumes.

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Part NUmbers and specifications

 

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EASY TO USE

Ready to use out of the box, the leak-proof screw-on cap provides easy sample access with included pipette without risk of needle punctures

ULTRAPURE MEMBRANE

Biotech Grade Cellulose Ester (CE) membrane tubing prevents polarization and membrane fouling, achieves high sample purities; no heavy metals and sulfide contaminants

 

unique design

Included floatation ring improves sample buoyancy and vertical orientation during dialysis, design allows multiple samples to be dialyzed in the same reservoir

total sample recovery

95-98% sample recovery while maintaining 98% sample purity

Broad MWCO Range

3 volume sizes, 9 color-coded molecular weight cut-offs (MWCOs)

Three easy steps

  1. Rinse with water

  2. Load sample

  3. Dialyze

       
3 Volume Sizes 1 ml 5 ml 10 ml
Working volume 0.8 ml - 1.3 ml 4.0 ml - 5.5 ml 8.0 ml - 11.0 ml
Total length 5 cm 10 cm 16 cm
Membrane diameter 10 mm 10 mm 10 mm
Top piece diameter 23 mm 23 mm 23 mm
Flotation ring 38 mm 38 mm 38 mm
   
9 MWCOs Color Code
0.1 - 0.5 kD Green
0.5 - 1 kD Orange
3.5 - 5 kD Black
8 - 10 kD Yellow
20 kD Red
50 kD Violet
100 kD Blue
300 kD Amber
1000 kD Pink
   
Membrane type Biotech grade Cellulose Ester (CE)
Screw-on cap Open and close for in-process sampling
  Color-coded for MWCO
  Polypropylene
Silicon O-ring Leak proof and resealable
Flotation ring Device body inserts through center to maintain buoyancy in buffer
  Polyethylene
Top/Bottom piece Polycarbonate
Potting Polyurethane
Sample loading Disposable pipette for 5 and 10 ml (included)
Pipette tip for 1 ml (not included)
Package/Quantity Dry with glycerol, 12/package

Micro Float-A-Lyzer®

The Micro Float-A-Lyzer® is a pre-assembled device designed for easy and efficient dialysis of very small sample volumes (100-500 µl). 

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Part Numbers and specifications

 

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EASY TO USE

Ready to use out of the box, the individual syringe allows for easy sample access, loading and retrieval without risk of needle punctures

ULTRAPURE MEMBRANE

Biotech Grade Cellulose Ester (CE) membrane tubing prevents polarization and membrane fouling, achieves high sample purities; no heavy metals and sulfide contaminants

 

unique design

Can stand upright on benchtops, or float and self-orient during dialysis, units can interlock for simultaneous dialysis of multiple samples

total sample recovery

95-98% sample recovery while maintaining 98% sample purity

Broad MWCO Range

2 volume sizes, 7 color-coded molecular weight cut-offs (MWCOs)

     
2 Volume Sizes 100-200 µl 400-500 µl
Height 4.4 cm 6.3 cm
Width 4.5 cm 4.5 cm
Thickness 1.9 cm 1.9 cm
Membrane flat width 10 mm 10 mm
Membrane diameter 6.4 mm 6.4 mm
   
7 MWCOs Color Code
0.1 - 0.5 kD Green
0.5 - 1.0 kD Orange
3.5 - 5 kD Black
8-10 kD Yellow
20 kD Red
50 kD White
100 kD Blue
   
Membrane type Biotech Grade Cellulose Ester (CE)
PP Luer-Lok cap Open and close for in-process sampling
Color-coded for MWCO
Leak proof and re-sealable
Body piece Seals top/bottom ends of membrane
Buoyant and self-orienting
Polycarbonate
Potting Polyurethane
Sample loading 1 ml syringe (included)
Packaging 12/package

tube-a-lyzer®

The Tube-A-Lyzer® is a ready-to-use, gentle dialysis separation device that combines convenience and disposability with the efficiency of dynamic dialysis. 

  • Uses Biotech Grade Cellulose Ester (CE) membrane tubing
  • 6 molecular weight cut-offs (MWCOs)
  • 2 volume sizes

SEE HOW IT WORKS

part numbers and specifications

 

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EASY TO USE

Ready to use, the dialysis device provides easy access for loading, recovering and in-process testing. This closed, high efficiency device offers high concentration dialysis without manual buffer changes

ULTRAPURE MEMBRANE

Biotech Grade Cellulose Ester (CE) membrane tubing prevents polarization and membrane fouling, achieves high sample purities; no heavy metals and sulfide contaminants

 

faster

Increases the rate of dialysis and reduces overall dialysis time from 1-2 days to  4-12 hours

Sterile

Non-pyrogenic device, can be sterilized (25 kGy gamma irradiation).

total sample recovery

95-98% sample recovery while maintaining 98% sample purity

unique design

Self-contained, disposable device incorporates a semi-permeable membrane tubing that separates the sample chamber from the surrounding flow-through buffer chamber

     
2 Volume Sizes 8 - 10 ml 25 - 30 ml
Buffer chamber volume 50 - 55 ml 120 - 130 ml
Total length 23 cm 50 cm
Total diameter 2.2 cm 2.2 cm
Membrane effective length 14 - 16 mm 36 - 38 mm
Membrane diameter 1.0 mm 1.0 mm
 
6 MWCOs
0.1 - 0.5 kD
3.5 - 5 kD
8-10 kD
20 kD
50 kD
100 kD
   
Membrane Biotech grade Cellurose Ester membrane (CE)
Sample chamber Polycarbonate top and bottom piece
Polyurethane potting
Female Luer-lok sample port
Polypropylene male Luer-lok cap
Buffer chamber Polycarbonate housing
Polycarbonate end caps
6 mm (3/16 inch) hose-barb inlet / outlet ports
Dynamic pump rate 10-20 ml/min (should be optimized for application)
Packaging Dry packaged with 20% glycerin

accessories

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These polystyrene cylindrical reservoirs provide the optimum environment for laboratory dialysis. Stir bar is included.

2 Volume Sizes 600 ml 2400 ml
Dialysis device up to 1 ml any size
Tubing flat width up to 16 mm up to 80 mm

 

Spectra/Gel® makes the concentration of protein sample solutions quick and efficient. Made of polyacrylate-polyalcohol it has the property of expanding as it absorbs water. The high molecular weight polymer can be used with all Repligen dialysis membranes without contaminating the sample. After dialysis, remove the dialysis tubing and coat it with Spectra/Gel® . Water and smaller molecules diffuse through the membrane and are absorbed by Spectra/Gel® Absorbent.  Spectra/Gel® is easy to remove after absorbancy.

  • High water absorbent capacity
  • Easy to use with any MWCO dialysis membrane
  • Easy to concentrate small molecular weight molecules
  • Easy to remove
  • Cost effective
  • Convenient for sample concentration with Float-A-Lyzer® G2

The length of time needed for concentration will depend on the final volume, the MWCO, the surface to volume ratio of the membrane tubing and the amount of Spectra/Gel® Absorbent. After dialysis in a Spectra/Por® Float-A-Lyzer G2 with a 20 kD MWCO, the volume can be reduced from 5 mL to 0.5 mL in 60 minutes with 100 grams of the Spectra/Gel® Absorbent.

Easy-to-use dialysis products such as Spectra/Por® Float-A-Lyzer G2 can be used with Spectra/Gel® to concentrate samples.

Designed with durability, reliability, and safety in mind, the Spectra/Por® Magnetic Stirrer has a precision, high-speed control system—ranging from 60 - 1500 RPM—with a continuously smooth revolution pattern. The technically advanced PCB (Printed Circuit Board) eliminates electrical overload and regulates energy distribution. A bearing-type motor maintains gentle revolution over the lifetime of the equipment. The Spectra/Por® Magnetic Stirrer features a heat-resistant, anti-corrosive aluminum body with a high-quality powder coating. A ceramic coated stainless steel top plate provides excellent chemical resistance, especially against strong acids and bases.

  • Small footprint, ideal for benchtop workspace
  • Ceramic coated stainless steel top plate suitable for large glassware
  • Responsive turn knob for precise adjustment of speed
  • Includes support rod, excellent for mounting thermometers
  • CE Certified
Speed Range 60-1500 rpm
Controller Electronic solid state
Material Ceramic coated stainless steel
Overall dimensions 8.5 x 10 x 4.5 in  |  (21.5 x 25.4 x 11.4 cm)
Plate dimension 7.3 x 7.1 in  | (18.5 x 18 cm)
Maximum power consumption 500 watt, 3.0 amp

 

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