The qualitative and quantitative detection
of metal contaminants in soil and groundwater currently requires detailed
sampling procedures followed by laborious and time consuming laboratory
analysis. Technologies capable of detecting these chemicals on site are highly
desirable. Using voltammetric sensors both qualitative analysis (identification
of specific metals) and quantitative analysis (target ion concentration) are
possible. Conducting polymers adsorbed on the electrode surface increases the
scope of voltammetric analysis. The focus of this research project is to develop
novel conducting polymer electrode surfaces that allow detection of metals at
concentrations lower than the maximum contamination limits in water recommended
by the EPA. These electrodes may be either highly selective to a particular
metal ion or broadly selective. In this project we have,
- Developed a prototype voltammetric
sensor capable of detecting the presence of heavy metals in solution.
- Investigated the role of
functional dopants in the detection of heavy metals.
- Synthesized novel monomers
incorporating functional groups capable of metal ion chelation.