Organic copper and chromium complexes in the interstitial waters of Narragansett Bay sediments
Document Type
Article
Date of Original Version
1-1-1986
Abstract
Dissolved organic copper and chromium complexes were measured in both overlying and interstitial waters of Narragansett Bay and mesocosm sediments using C18 reverse-phase liquid chromatography and atomic absorption spectroscopy. In the interstitial and overlying waters, the isolation procedure recovered 22-67% of the total dissolved copper, 23-55% of the total dissolved chromium and 14-40% of the dissolved organic carbon. The distribution of both total and organic copper decreased with depth in the cores and exhibited a subsurface maximum near the zero Eh level (z = 2-4 cm). Below that depth, both forms of copper continued to decrease until an apparent equilibrium with sulfide minerals was established (7-8 cm). Dissolved chromium exhibited a different geochemistry, with both total and organic chromium increasing in concentration with depth in the cores, possibly due to remobilization from some mineral phase such as chromic hydroxide or chromite. © 1986.
Publication Title, e.g., Journal
Marine Chemistry
Volume
19
Issue
2
Citation/Publisher Attribution
Douglas, Gregory S., Gary L. Mills, and James G. Quinn. "Organic copper and chromium complexes in the interstitial waters of Narragansett Bay sediments." Marine Chemistry 19, 2 (1986). doi: 10.1016/0304-4203(86)90047-2.