The availability and speciation of a number of metals widely dispersed
in the aquatic environment intimately affect the biogeochemistry of t
he ocean and its inhabitants. Much research has been focused on the de
velopment of analytical methodologies to elucidate better the backgrou
nd concentrations, variability, and contaminant effects of metal speci
es. The purpose of this research is to investigate the viability of a
fiber-optic sensor that will be a sensitive and selective probe for tr
ace metals in natural waters.