We studied the use of dimethyl carbonate (DMC) as a non-toxic, aprotic modifier for hydrophilic liquid interaction chromatography (HILIC) and normal-phase (LC). A comparison ethyl acetate (EA) DMC organic mobile-phase modifiers in hexane LC phthalates was conducted with silica column showed that retention factors (k) at same percentage were about factor two greater DMC. Detection 215 nm, possib...

the high pressure behavior of the structural and electronic properties of kc1 is studied with use of the density functional pseudopotential method within local-density approximation. atzero pressure, the rocksalt phase is found to be lower in energy than cscl structure. however, we predict a phase transition into csci structure at a pressure of about 1.5 gpa. the calculated ground state propert...