Geochemistry of trace metals in estuarine waters: A multi-phase speciation approach

To study the speciation and geochemistry of colloidal and particulate trace metals in estuarine waters, laboratory and field investigations were conducted. To determine the phases for trace metals, three analytical tests were conducted: (1) sequential extraction of particulate phases, (2) correlations between colloidal fractions of trace metals and those of organic carbon or iron, and (3) comparisons of partition coefficients between colloids or particles and true solution.