Portable, 4-channel SPR

The P4SPR is a unique modular, mobile and multi-channel device designed to democratize SPR in drug discovery, bio/sensing and system integration. Our unique technology can detect and monitor not only biomolecule such as small peptides and large proteins but also small drugs, self-assembled monolayer and nanomaterial. Simple and easy to use, the multi-purpose P4SPR provides rapid access to conventional film-based SPR.



Adaptable for different optical conditions, fluidic requirements, and other techniques.


Smaller and lighter than your average textbook. Portable for on-site testing.


Multi-channel: PDMS microfluidic cell with 4 channels.


  • Dimensions in mm: 175 x 155 x 55
  • Weight of < 1.3 kg
  • USB powered
  • Microfluidic cell min. volume: 50 uL
  • Sensitivity typical for gold thin film-based SPR
  • Resolution of 1 micro refractive index unit
  • Dynamic range from 1.33 to 1.39 refractive index unit
  • Coefficient of variation on signal of > 0.6%
  • Polychromatic light source
  • LabVIEW TM control graphical user interface
  • Compatible with Ridgeview’s TraceDrawerTM

Download our Tech Sheet for more details.


  • Portable / Accessible
  • Precise with triplicate and reference
  • Direct detection in complex media
  • Can be integrated with other analytical techniques (e.g., HPLC, MS, Raman, Fluo)
  • Low maintenance
  • Robust
  • Low Throughput
  • Easy to use

Kretschmann SPR


The P4SPR significantly reduces the cost barrier associated with most commercial SPR technologies. Access benchmark SPR technology at a fraction of the cost to leverage SPR benefits and accelerate your discoveries.

1 Year Warranty

We have full confidence in the robustness of our student-tested P4SPR. That's why we offer a one-year warranty where we exchange your device for a new one.*
*Terms and conditions apply

Expert Support

Our team is built of experts in surface plasmon resonance, analytical chemistry and instrumentation, protein science and industrial analytical process development. We are ready to support you along the way.