Electrochemical methods for speciation of trace elements in marine waters. Dynamic aspects.

Concentrations of Some Trace Metals in the Tissues of Two Commercial Fishes from Tonekabon

In this study, concentrations of mercury (Hg) and 16 other elements as well as methylmercury speciation were quantified in muscle and liver of two commercial fish species. It was also our intention to evaluate potential risks to human health associated with seafood consumption. The fish species, Mullet and Kutum (Caspian White fish) fishes, were obtained from Tonekabon at the Iranian waters of ...

Trace Metals and Major Elements in Sediments of the Northern Persian Gulf

The concentrations of sixteen elements and organic carbon were determined in 78 marine sediment samples collected from the Iranian coastal waters of the Persian Gulf. Nine transects perpendicular to the coastline were sampled. Sixteen elements, including As, Ba, Cd, Co, Cu, Mn, Ni, Pb, Zn (trace metals) and Ca, Fe, Mg, Na, P, S, Si (major metals), were determined by Inductively Coupled Plasma M...

Food for Thought: A Critical Overview of Current Practical and Conceptual Challenges in Trace Element Analysis in Natural Waters

The practical and conceptual challenges faced by the analysis of trace elements present in natural waters are not merely, as is often thought, an endless race towards lower detection limits or to the development of techniques allowing the determination of any possible chemical species formed by all chemical elements. Rather, as discussed in this paper, they include the development of (i) robust...

Methods for analyzing the concentration and speciation of major and trace elements in 1 marine particles 2

Limnol. Oceanogr., 45(3), 2000, 619–627

Organic chelators that are thought to be of recent biological origin control copper speciation in seawater. Previous studies have often resolved these copper binding ligands into two classes, class 1 ligands (conditional stability constants 1012–1014 M21) and class 2 ligands (conditional stability constants 109–1012 M21). At present the sources and structures of these chelators are unknown. Pre...