The extraction behavior of Cu(II) ions from a real sulfate liquor obtained from the heap leaching stage of a copper oxide ore was investigated using a chelating reagent, Chemorex CP-150 in kerosene. A comparative study was also carried out on the extraction capability of Cu(II) ions using other solvents including D2EHPA and Cyanex 272.Chemorex CP-150 demonstrated an effective and selective extr...

BACKGROUND Non-selective and selective beta-blockers have been shown to improve outcomes in chronic heart failure (CHF). Recent data suggests the non-selective beta-blockers have a more favourable effect on outcomes than beta(1)-selective agents. We sought to examine the differential effects of non-selective versus selective beta-blockade on myocardial substrate utilization in patients with CHF...

Texture and feature extraction is an important research area with a wide range of applications in science and technology. Selective extraction of entangled textures is a challenging task due to spatial entanglement, orientation mixing, and high-frequency overlapping. The partial differential equation (PDE) transform is an efficient method for functional mode decomposition. The present work intr...

Copper-bearing raw materials are often subjected to organic solvents with main ligands as their water insoluble amine complexes. In most cases, selective extraction is a more economical and practical method because it requires simple equipment and fewer stages than other methods described in the literature1−4. Solvent extraction enjoys a favored position among the separation techniques because ...

Mitotic apparatus isolated from sea urchin eggs has been treated with meralluride sodium under conditions otherwise resembling those of its isolation. The treatment causes a selective morphological disappearance of microtubules while extracting a major protein fraction, probably consisting of two closely related proteins, which constitutes about 10% of mitotic apparatus protein. Extraction of o...

a simple and rapid microextraction procedure based on dispersive liquid-liquid microextraction (dllme) was developed for determination and speciation of trace amounts of chromium (cr) by flame atomic absorption spectrometry (faas). in the proposed approach, chloroform and methanol were used as extraction and dispersive solvents. a new schiff's base ligand, bis(2-methoxy benzaldehyde) ethylene d...