Dr. Terry Morocco performs analyses for these heavy metals using the electroanalytical method of anodic stripping voltammetry (ASV, see figure) . This method of analysis, used infrequently in the past, is rapidly gaining popularity due to its low ppb sensitivity. In addition to environmental monitoring, Dr. Morocco would like to study the geochemical cycling of these metals, as well as the factors that influence the transformations that makes them "bio-available."

Currently, efforts are underway to extend the detection limit of ASV for Hg⁺² by employing a separation step prior to the analysis. Chelation followed by solid phase extraction (SPE) has the potential to extend the detection limit by a factor of 100.

For more information. contact Dr. Terry Morocco