Now showing items 121-130 of 152
ANION-EXCHANGE SYNTHESIS OF COPPER FERRITE POWDERS
Amethod is proposed for synthesizing copper ferrite, consisting in anion-exchange precipitation of copper (II) and iron (III) from solutions of their salts in the presence of tartrate ions as complexing agents followed by ...
Use of Silica with Immobilized 2-Nitrozo-1-Naphthol-4-Sulfonic Acid for the Sorption–Photometric Determination of Palladium
Silica modified with 2-nitroso-1-naphthol-4-sulfonic acid (NNS), quantitatively extracting palladium( II) from solutions in the pH range 1–8, is proposed for the preconcentration and photometric determination of palladium(II) ...
Preconcentration and Determination of Nickel ions using Silica with Functional Groups of Sulfonic Derivatives of Nitroso Naphthols
Silica based adsorbents modified with polyhexamethylene guanidine and sulfonic derivatives of nitroso naphthols - nitroso-N salt (NNS) and nitroso-R salt (NRS), have been proposed for preconcentration and solid-phase photometric ...
Estimation of the thermal and photochemical stabilities of pheromones Estimation of the thermal and photochemical stabilities of pheromones
The correlation between the kinetic stability of molecules against temperature and variations in their geometric structure under optical excitation is investigated by the example of different organic pheromone molecules ...