Drinking water treatments, Waste water treatments, Aquaculture operations, Aquariums, Analytical and Pharmaceutical laboratories, Fertilizers industry etc.
Inventors at UW-Milwaukee (UWM) have developed a highly sensitive, digital, graphene based electrochemical sensor for the detection of phosphate in water. The sensor is designed to detect phosphate levels as low as 10-10 M (mol/L) using layers of graphene oxide, polypyrrole and metal. It is specific and can avoid interference from potassium chloride present in the solution.
Phosphate is a well-known contaminant of water which in excess leads to eutrophication, or an excess of nutrients in the water. The UWM phosphate sensor is easier to use and more sensitive compared to other reported devices, many of which focus on a colorimetric assay. It uses a simple digital potential readout through a voltmeter rather than voltammic stripping. The system can be hand held for mobility or mounted as a semi-permanent device. Positive test results have shown that, this device can provide an accurate and inexpensive alternative to the current products on the market.
PCT Filed Oct. 2018, PCT/US2018/046322
This technology is part of an active and ongoing research program and is seeking partners for development of the final product. It is available for developmental research support/licensing.
For further information please contact:
Smruti Patil, PhD, IPMM
UWM Research Foundation
1440 East North Avenue
Milwaukee, WI 53202