Portable/Remote Chemical Analyzers With Reduced Reagent NeedsEPA Contract Number: 68D70031
Title: Portable/Remote Chemical Analyzers With Reduced Reagent Needs
Investigators: Sepelak, Dennis J.
Small Business: Testing Services
EPA Contact: Manager, SBIR Program
Project Period: September 1, 1997 through March 1, 1998
Project Amount: $69,400
RFA: Small Business Innovation Research (SBIR) - Phase I (1997) RFA Text | Recipients Lists
Research Category: Ecological Indicators/Assessment/Restoration , SBIR - Monitoring , Small Business Innovation Research (SBIR)
Description:Currently, there are two ways of obtaining chemical analyses for field sites. The first method requires samples to be taken, marked, sent to a lab, and analyzed. This method is labor-intensive, and there often is a significant lag time between taking the sample to receiving the test results. The second method, placing a remote automatic analysis device in the field, avoids these problems; however, existing automatic units are not portable due to significant reagent and power requirements and are expensive to purchase, operate, and maintain.
This SBIR project will explore novel designs for low-cost portable/remote chemical analyzers. In Phase I, new sensors will be designed that will reduce or eliminate the need for reagent chemicals. These sensors will be coupled with small, single-board computers to make low-cost, compact real-time analyzers capable of monitoring multiple pollutants and water quality parameters, with minimal need for reagents and power. The first step will be to build a new sensor for phosphate because of its environmental and industrial impact. Two concepts will be explored in this research - the reaction of phosphate at metal electrode surfaces and the electrogeneration of reagents for the detection of phosphate.