Претраживање
Приказ резултата 31-40 од 428
Electrochemical stability of metformin in NaHCO3 and Na2SO4 water solution at Au, GC and IrOx electrodes
(Srpsko hemijsko društvo, Beograd, 2019)
In this study the electrochemical behavior of metformin (MET), oral antihyperglycaemic agent, was assayed at three different electrodes. The drug standard was investigated by cyclic voltammetry and square wave voltammetry ...
Electrocatalytic properties and stability of titanium anodes activated by the inorganic sol-gel procedure / Titanske anode aktivirane oksidnom prevlakom dobijenom sol-gel postupkom
(Serbian Chemical Society, 2008)
The properties of activated titanium anodes, RuO2-TiO2/Ti and RuO2--TiO2-IrO2/Ti, prepared from oxide sols by the sol-gel procedure, are reviewed. RuO2 and TiO2 sols were synthesized by forced hydrolysis of the corresponding ...
Production of lipase from Pseudozyma aphidis and determination of the activity and stability of the crude lipase preparation in polar organic solvents / Proizvodnja lipaze iz Pseudozyma aphidis i utvrđivanje aktivnosti i stabilnosti lipaze u polarnim organskim rastvaračima
(Serbian Chemical Society, Belgrade, 2011)
The production of lipase from Pseudozyma aphidis (DSM 70725) was determined in six different media. The highest lipase production was observed in a medium with glucose as the sole carbon source, and yeast extract and sodium ...
Simple one-pot synthesis of thioureas from amines, carbon disulfide and oxidants in water
(Srpsko hemijsko društvo, Beograd, 2016)
The present study reports a new facile methodology for the synthesis of symmetrical and asymmetrical thioureas by a one-pot reaction of the required amine, carbon disulfide and an oxidant, i.e., hydrogen peroxide, ...
Novel negatively charged membrane adsorbers made using a combination of photopolymerization and immersion precipitation
(Srpsko hemijsko društvo, Beograd, 2016)
A novel method combining a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution was used to prepare asymmetric ...
The porosity and roughness of electrodeposited calcium phosphate coatings in simulated body fluid
(Srpsko hemijsko društvo, Beograd, 2015)
Calcium phosphate coatings were electrochemically deposited on titanium from an aqueous solution of Ca(NO3)(2) and NH4H2PO4 at a current density of 10 mA cm(-2) for a deposition time of 15 mm. The obtained brushite coatings ...
Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance
(Srpsko hemijsko društvo, Beograd, 2019)
The mechanical properties of systems consisting of copper coatings electrodeposited on both brass sheet (BS) and thick electrodeposited nickel coating (ED Ni) substrates have been investigated. The electrodeposition of ...
Removal of heavy metals from water using multistage functionalized multiwall carbon nanotubes
(Srpsko hemijsko društvo, Beograd, 2017)
The multistage synthesis of the multi-wall carbon nanotubes (MWCNT) modified with polyamidoamine dendrimers, A1/and A2/MWCNT, capable of cation removal, is presented in this work, as well as novel adsorbents based on these ...
Durability of alkali activated slag in a marine environment: Influence of alkali ion
(Srpsko hemijsko društvo, Beograd, 2018)
The durability of alkali-activated steel electric arc furnace slag (EAFS) in a marine environment was evaluated with respect to the chemical composition of the alkaline activator. Two different alkaline activators have ...
ANN prediction of the efficiency of the decolourisation of organic dyes in wastewater by plasma needle
(Srpsko hemijsko društvo, Beograd, 2020)
In this paper, the results of decolourisation of Reactive Orange 16 (RO 16), Reactive Blue 19 (RB 19) and Direct Red 28 (DR 28) textile dyes in aqueous solution by plasma needle are presented. Treatment time, feed gas flow ...