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477  Articles
1 of 49 pages  |  10  records  |  more records»
Was proposed two potentiometric methods for determining peroxodisulfuric acid during electrolysis of sulfuric acid (potentiometric titration method and direct potentiometry), based on its interaction with a known excess of a solution Fe2+.

This paper describes an experimental investigation in aqueous solution of the equilibria between gallium (III) metal ions and acetate ions as a model of low-molecular-weight ligand using potentiometric techniques under physiological conditions of temperat... see more

The polymer-analogous conversion of triblock copolymers (TBC) PAAm-b-PEO-b-PAAm by the aminomethylation reaction in PAAm blocks under the effect of dimethylamine and formaldehyde (Mannich’s reaction) was studied. Kinetic investigations of the Mannich’s re... see more

Electrochemical methods of modifying the surface of a semiconductor electrode based on gallium arsenide(GaAs) were proposed. Behavior of unmodified and modified electrodes in GaAs-potassium chloride were investigated. Electroanalytical characteristics of ... see more

Methylmercury solutions in chloroform (1000 mgHg/L) were titrated potentiometrically, using saturated calomel and silver electrodes, and potassium iodide aqueous solution (5 mmols/L) as the titrant. For comparison, mercuric ion and methylmercury aqueous s... see more

The ion pair (IP) of levamisole with BiI4-(SbI4-) for the levamisole-selective sensor with a PVC membrane containing - ions were developed. Thermal behavior of obtained IP was investigated by differential thermal analysis that would show the thermal stabi... see more

Amorphous iron phosphate, FePO4.2H2O, was synthesized at ambient temperature using an inorganic sol-gel method coupled with a microwave route. The experimental conditions for the gelling of the Fe (III)-H3PO4 system are defined.  Potentiometric Time ... see more

In this work we obtained a polymer-metal complex by mixing aqueous solution of copper(II) acetate with PVA at a certain ratio, pH of the solution and temperature. The composition of the complex compound was determined by potentiometric and conductometric ... see more

ABSTRAK: Pemeriksaan kadar zat aktif merupakan persyaratan yang harus dipenuhi untuk menjamin kualitas sediaan obat sehingga sesuai dengan persyaratan mutu yang menunjang tercapainya efek terapeutik yang  diharapkan. Tablet Mucopect dan Mucera merupa... see more

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