Portable Low-Cost System for Field Chemical Analysis

Case ID:

This invention describes a portable, low cost, system incorporating a compact potentiostat for electrochemical analytical chemistry measurements. The system can run on five-volt batteries and stores data that can be readily exported.


Measurement science has continually evolved since the introduction of the operational amplifier, the charges curled device, and the microcontroller. Arduino (computer hardware, software, and microcontroller based kits) provides a cheap means of computing to perform calculations in the field. These have now been brought together in a revolutionary new platform for performing laboratory grade measurements on field samples.



  • Can be integrated with sensors for biomedical measurements for portable office or patient use
  • Environmental sample chemical measurements
  • Field experimentation and research tool
  • Educational tool for students (i.e. study of electrochemistry)



  • Inexpensive and easy to produce
  • Allows for highly relevant tests to be run in the field 
  • Arduino is an open source platform, allowing additions to the main unit to be made easily

Status: issued U.S. patent #11,536,691

Patent Information:
Contact For More Information:
Jonathan Larson
Senior Licensing Manager, College of Science
The University of Arizona
Lead Inventor(s):
Michael Heien
Drew Farrell