Now showing items 1-10 of 12
Determination of the [Pt(NH3)5Cl]Br3 crystal structure from X-ray powder diffraction data using multi-population genetic algorithm
The paper describes an approach for automated crystal structure solution from powder diffraction data using the multi-population genetic algorithm (MPGA). The advantage of using co-evolution with the best individual exchange, ...
MULTI-POPULATION GENETIC ALGORITHM FOR CRYSTAL STRUCTURES SOLUTION FROM X-RAY POWDER DIFFRACTION DATA
The crystal structures of over two hundred new substances are annually solved from powder diffraction data by methods of global optimization. A common problem of these methods is a deterioration in the convergence with an ...
Multipopulation Genetic Algorithm for Determining Crystal Structures Using Powder Diffraction Data
A method for the automatic determination of crystal structures using powder diffraction data by the multipopulation genetic algorithm is proposed. The advantage of using coevolution with exchange by better individuals over ...
Biosorbents based on pine sawdust and malt sprouts for preconcentration and ICP-OES determination of nonferrous, heavy, and precious metals in the environmental samples
Pine sawdust and malt sprouts modified with orthophosphoric acid and carbamide have been proposed for solid-phase extraction (SPE) of nonferrous, heavy, and precious metals and their subsequent determination in the ...
ПРИМЕНЕНИЕ СИЛИКАГЕЛЯ, ХИМИЧЕСКИ МОДИФИЦИРОВАННОГО СЕРОСОДЕРЖАЩИМИ ГРУППАМИ, ДЛЯ РАЗДЕЛЕНИЯ И ОПРЕДЕЛЕНИЯ ПЛАТИНЫ И РЕНИЯ В КАТАЛИЗАТОРАХ НА ОСНОВЕ ОКСИДА АЛЮМИНИЯ
Adsorbents based on silica chemically modified by sulfur-containing groups (dithiocarbamate, thiodiazolethiol, mercaptophenyl, and aminobenzothiazole) quantitatively extract (recovery ≥99%) platinum( IV) from solutions ...
Extraction of precious metals from industrial solutions by the pine (Pinus sylvestris) sawdust-based biosorbent modified with thiourea groups
A novel biosorbent based on pine (Pinus sylvestris) sawdust with chemical grafted thiourea groups was proposed for preconcentration of precious metals. A simple procedure was proposed for the synthesis of biosorbent ...