11). The strong association of Bi with galena can be explained by the solid solution between AgBiS2 and PbS (Van Hook, 1960). Amcoff (1984) and Huston et al. (1996) showed that the coupled substitution of AgBi for Pb, especially at temperatures below 390 °C, controls the overall ...
The study was based in sixteen samples, from eleven man and five women with ages ranging between 23 to 43 years old. Concentrations of R-methadone and R-EDDP were found in all body fluids and tissues, while S-enantiomers were only found in thirteen of the cases. The R/S ratios ranged ...
The unique photocatalytic activity of magnetic MgFeCrO4 nanoparticles for rapid degradation of direct black 122 (DB122) dye in aqueous solution under visible light was studied. The photocatalytic activity of the nanocatalyst (MgFeCrO4) is achieved due to the synergistic effect between Mg, Fe and...
In most cases, samples are extracted, separated by reverse-phase liquid chromatography, which is coupled to tandem mass spectrometry (LC-MS/MS). The prerequisite for this type of analysis is a solution of the analytes; thus, compounds that are insoluble in the typically used solvents (methanol...
Solution behavior studies proved that both Os-dca and Ru-dca hydrolyze in the presence of water, which is connected with a release of the [M(η6-pcym)(bphen)(H2O)]2+ metal-based species and bioactive dca ligand. Importantly for the biological studies, Os- dca is more stable under the...
(C–O stretch from dioxypropylene ring; intensity should be insensitive to oxidation state of polymer) demonstrates that more functional monomer is incorporated into the film with an increase in the relative concentration in the deposition solution, since the intensity of the carbonyl stretch increases...