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Spectra/Por® Micro-dialysis Hollow Fiber Bundles


Rapid or in vitro Dialysis of Small Volumes

Whether conducting a simple desalting or a complex in vitro study, hollow fiber micro-dialysis bundles are ideal for the rapid and efficient dialysis of small volume samples that are valuable and difficult to attain. Available in 13 kD and 18 kD, the hollow fiber bundles consist of 20 fibers with 0,2 mm ID potted together on both ends to a pair of female Luer-Lok ports. The hollow fiber bundle can be capped off with the sample encapsulated or connected for capillary circulation (3 ml/hr/fiber) and submerged in a standard buffer for lab dialysis or a simulated true-to-life environment for in vitro studies.

Features & Benefits

  • Biologically inert regenerated cellulose membrane
  • 0,2 mm lumen ID for efficient dialysis of microliter volumes
  • Female luer lok connection ports for sample circulation

Hollow Fiber Specifications


2 MWCO's:13 and 18 kD
Fiber OD:216 µm
Fiber ID:200 µm
Working Volume:5 µl/fiber
Surface Area / Length:6,3 mm2/cm
Volume / Length:0,31 µl/cm
*Q-Factor:20

*Q-factor is the ration between membrane surface area and volume. The Q-factor should be as high as possible for maximum efficiency and to reduce dialysis time.

Ordering Information: click on Product No. to add to cart

Part No.DescriptionMWCO No. of FibersHold-Up Vol.Price

132274Hollow Fiber Bundle13 kD20140 µl€ 151order part 132274
132266Hollow Fiber Bundle18 kD20140 µl€ 151order part 132266

Click on any part number for pricing information or to place an order.

In vitro MicroDialysis Applications:

  • Micro-dialysis of metabolites for pharmacology
  • Comparison to in vivo micro-dialysis studies
  • Dialysis studies in an artificial capillary
  • Preparation of micro-samples for gel electrophoresis or in vivo implantation

Lab Dialysis Resources:




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