Wisconsin Alumni Research Foundation

Clean Technology
Clean Technology
Electrochemical Method To Detect Arsenic (Iii) Ions In Water Using Nanostructured Colloidal Metals
WARF: P190123US02

Inventors: Sundaram Gunasekaran, Batul Unchwaniwala, Anu Prathap Mylamparambil Udayan

The Invention
Monodispersed colloidal gold nanoparticles (AuNPs) were synthesized by an easy, cost-effective, and eco-friendly synthesis route. The resulting AuNPs exhibited excellent electroanalytical ability to simultaneously detect toxic As(III) and As(V). The limit of quantification (LOQ) toward As(III) was 0.075 ppb (1 nM), which is well below the guideline value approved by the United States Environmental Protection Agency (US EPA) and the World Health Organization (WHO). Under the optimal conditions, a linear response in the concentration range of from about 0.075 ppb to about 0.03 ppm (1 nM-400 nM) was observed. The method is useful to detect arsenic contamination of water intended for human and animal consumption.
Additional Information
For More Information About the Inventors
For current licensing status, please contact Jennifer Gottwald at [javascript protected email address] or 608-960-9854