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101  Articles
1 of 11 pages  |  10  records  |  more records»
A differential pulse voltammetric method using a hanging mercury drop electrode (HMDE) was optimized for the determination of 5-dodecylsali­cyl­aldoxime in hydro-alcoholic solutions using factorial and central composite designs. The Taguchi design methodo... see more

The study of the properties and use of natural metalloporphyrins in the development of new highly selective methods for the oxygenation of hydrocarbons at moderate temperatures is an urgent problem. The present work is devoted to the extraction of metallo... see more


An aqueous extracts of dandelion (Taraxacum oficinale Wigg.) for the needs of diet. The optimum conditions for extraction of biologically active substances dandelion, namely the ratio of raw materials: extractant 1:20, extraction time – 30 minutes, the te... see more

La synthèse sous irradiation micro-ondes (temps d’irradiation = 40 minutes, Puissance d’irradiation = 240 Watts), la caractérisation et l’application de nouveaux agents extractants organophosphorés de type acides alkylaminobiméthylène diphosphon... see more

An aqueous extracts of dandelion (Taraxacum oficinale Wigg.) for the needs of diet. The optimum conditions for extraction of biologically active substances dandelion, namely the ratio of raw materials: extractant 1:20, extraction time – 30 minutes, the te... see more

We have developed a membrane impregnated with ionic liquid Cytos IL102/D2EHPA (trihexyltetradecylphosphonium bromide/di(2-ethylhexyl) phosphate) for the extraction of Tb(III) from aqueous solutions at different pH values. Various parameters such as the mi... see more

The separation of trivalent rare earth metals is perhaps the most serious challenge associated with a closed fuel cycle. The choice of ligand as extractant, which must be selective and efficient in conditions of high radiation environment, plays an import... see more

In this article, chromium(VI) extraction properties of two azocalix?4?arene based receptors (L4 and L6) are reported. A preliminary evaluation of the binding efficiencies of p-substituted azocalix?4?arene derivatives L4 and L6 was carried out by solvent e... see more

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