Although sulphur deposition rates in Europe have considerably decreased over the last decades, sulphate concentrations in freshwater wetlands are still high, as a result of drainage, nitrate pollution, and increased sulphur loads in rivers. High sulphur fluxes may cause sulphide toxicity and eutrophication, and strongly interfere with the biogeochemical cycling of iron and phosphorus. In the pr...

Cobaltohemoglobin prepared from horse hemoglobin retains the full heterotropic linkage properties of the normal iron hemoglobin, including both the Bohr and phosphate effects. From this result, and the known connection between heterotropic linkage properties and hemoglobin conformational change, it is concluded that cobaltohemoglobin undergoes a quaternary structure transition upon oxygenation....

Bis(2-ethylhexyl) phosphate (BEHP) was exposed to carbon steel surfaces from dry and water-saturated dodecane. The resulting changes the were characterised using spectroscopic techniques (energy dispersive X-ray (EDX), photoelectron (XPS), far-infrared reflection absorption (RAIRS) spectroscopies) polarised neutron reflectometry (PNR). Although there no observable affinity of BEHP surface in so...

Two water-soluble tris(2-aminoethylamine) (tren) capped iron porphyrins were synthesized. The stability of their dioxygen adducts was studied in phosphate buffer, leading to half-life times around 7 min for the oxygenated species.