Porous Polymer Optrode Monitoring System

Geo-Centers, Inc.

Newton Centre, MA

A unique, porous optical electrode (optrode) for continuous, real-time in-situ measurement of pH and
environmental pollutants in vapors and liquids

• Reduced calibration and maintenance - $5000 to

$25,000 annual savings over competing systems
• Fast, stable response in low ionic strength solutions

• Over 20 systems sold to date
• Entered strategic alliance with another company to market optrode-based systems to water/wastewater and industrial process controls markets - projected worldwide market is $300M
• Projected sales 3 years after introduction of $4.7M

• Monitoring and controlling solution

pH in:
- plant growth experiments,
bioreactors, and in aquaculture
- water/wastewater treatment
- environmental site caracteriza-
tion and remediation
• Process control for chemical, pulp &

paper, food, and metals industries

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