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Dr Andy MacKenzie, University of the West of Scotland

I have had dealings with WPI for several years and have consistently found their customer service to be second-to-none. They have always provided fast and insightful responses to any technical query and such support has been of enormous help to my laboratory.
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Two-Syringe Microdialysis Pump

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  • Accepts syringe sizes: 10uL - 10mL (two)
  • Minimum Flow Rate: 0.001 uL/min (10 uL syringe)
  • Maximum Flow Rate: 0.351 mL/min (10 mL syringe)
  • 220-240 V, 50 Hz

Sturdy, reliable, and easy to use

Sturdy and reliable, extremely simple to set up and use - and surprisingly affordable. Liquid crystal displays (LCDs) prompt you through set­up: First, select syringe from table stored in the pump's memory and displayed on the LCD. Next, enter the volume to be dispensed. Finally, enter the flow rate, press "start." It's fast and simple. Your settings are permanently stored in memory - there's no need to re-enter them each day. SP pumps feature preset rate and volume control. Just set the volume you want dispensed. Volume is tracked continuously on the LCD display. Then, when the preset volume has been dispensed, the pump shuts off automatically. The easy-to-read digital display provides realtime readings using both parameters and values for clearer, mistake-free readings.


Developed especially for use in microdialysis experiments, these pumps produce very fine syringe movement. The modified SP100i gearing features a sixfold gear reduction compared to standard models, allowing pumping at much smaller flow rates. (See sensors such as ISO-NO and Micro-C for detection of dialysates.) The SP101i is a dual barrel infusion only pump.



Mode (Microdialysis) Infusion
Syringe Size 10 µL to 10 mL (two)
Maximum Flow Rate (10 mL Syringe) 0.351 mL/min.
Minimum Flow Rate (10 µL Syringe) 0.001µL/min
Linear Force 40 Ib (18 kg)
Advance Per Microstep (1/2-step) 0.088 micron
Maximum Step Rate (1/2-step) 400 steps/sec
Minimum Step Rate 1 step/30 sec
Accuracy < 1% error
Reproducibility ± 0.1%
Dimensions 9 x 6 x 5.5 in. , 23 x 15 x 14 cm
Shipping Weight 7.5 Ib (3.4 kg)
Notes: Available 95-135 V or 220-240 V, 50/60 Hz




Our Clients Include:

University College London
Imperial College
University of Cambridge
University of Oxford

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