School of Earth and Ocean Sciences, Cardiff University, Main Building, Park Place, Cardiff CF10 3YE, UK The largest and most significant type of geological deposit of platinum group elements (PGEs) is that associated with magmatic base metal sulfide minerals in layered mafic or ultramafic igneous intrusions.The common association of PGEs with sulfide minerals is a result of processes of magmati...

Hydrous silicate melts appear to have greater compressibility relative to anhydrous melts of the same composition at low pressures (<2GPa); however, at higher pressures, this difference is greatly reduced and becomes very small at pressures above 5GPa. This implies that the pressure effect on the partial molar volume of water in silicate melt ( partial differentialV-H2O/ partial differentialP) ...

We have developed a method to accurately determine (< 3% RSD) the complete major and modified base composition of a few micrograms of unlabeled DNA. The DNA samples were quantitatively hydrolyzed with DNase 1, Nuclease P1, and bacterial alkaline phosphatase. The resulting deoxyribonucleosides were directly separated in 70 min by reversed-phase high performance liquid chromatography with detecti...

The need for reliable means of ordering and quantifying the Lewis basicity of anions is discussed and the currently available methods are reviewed. Concluding that there is need for a simple impurity-insensitive tool, we have sought, and here describe, a new method using NMR spectroscopy of a weak base, a substituted urea, 1,3-dimethyl-2-imidazolidinone (DMI), as it is protonated by Brønsted ac...

Zinc dialkyldithiophosphates (ZDDP) and a P-based ionic liquid (IL) were added in polyalphaolefin base oil (PAO). Their tribological performance steel-steel contacts the boundary (BL) “starved” elastohydrodynamic (sEHL) lubrication conditions investigated.

A hydroxyl Schiff base molecule was synthesized from tetraethylenetetramine and 4-nitrosalicylaldehyde and explored as an ionophore with ionic liquid, cation excluder in PVC membranes showing remarkable sulfate selectivity; the optimal recognition site was predicted by density function theory (DFT) simulation.