Estuarine and coastal habitats experience large fluctuations of environmental factors such as temperature, salinity, partial pressure of CO2 ( [Formula: see text] ) and pH; they also serve as the natural sinks for trace metals. Benthic filter-feeding organisms such as bivalves are exposed to the elevated concentrations of metals in estuarine water and sediments that can strongly affect their ph...

Patterns of sedimentary trace-metal variation can provide information not only about benthic redox conditions, but also about other water-mass properties in ancient marine depositional systems. Trace metals such as Mo, U, V, and Re display conservative concentration profi les in the global ocean but varying concentration profi les in modern anoxic silled basins (e.g., the Black Sea, Cariaco Bas...

While the homogenous binding of metal ions by a wide range of organic and inorganic ligands has been studied using numerous methods and comprehensive data of the homogenous association constants are available for many metal ions, ligands and solvent systems, complied data involving heterogeneous binding by surface bound ligands do not exist. Only few methods have been developed and applied for ...

Background, aim and scope In water systems, water quality and geochemical properties of sediments determine the speciation of trace metals, metal transport, and sediment-water exchange, influencing metal availability and its potential effects to biota. Studies from temperate climates have shown that iron-ore mining and tailing wastewaters, besides being a source of trace metals, usually show hi...

Radix Scutellariae from different producing areas were processed by wet digestion, and a total of 28 metal trace elements, which may be essential or harmful to human being, were determined using inductively coupled plasma-mass spectrometry (ICP-MS) firstly. The results indicate that the kind of metal elements in Radix Scutellariae from different area were basically the same, but the contents ma...