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Vanadyl porphyrins in sedimentary kerogens/asphaltenes: Estimation of the concentration
(Journal of the Serbian Chemical Society, 1999)
A new, rapid method for determining the concentration of vanadyl porphyrins (VO2+-P) associated with the kerogen of bituminous sedimentary rocks, using electron spin resonance (ESR) is described. The method is simple, ...
Radiochemical purity and particles number determinations of modified Tc-99m-macroaggregated albumin
(Journal of the Serbian Chemical Society, 2002)
A new procedure for the aggregation of human albumin and Tc-99m-labelling of the prepared macroaggregated albumin are presented. Simple methods for quantifying of all the radiochemical impurities existing in Tc-99m-MAA ...
The effects of microalloying with silicon and germanium on microstructure and hardness of a commercial aluminum alloy
(Journal of the Serbian Chemical Society, 2003)
The effect of small additions of Si and Ge on the microstructure and hardness was investigated during aging of a commercial 2219 aluminum alloy It was found that for the same level of microalloying in alloy 2219SG (containing ...
Determination of cesium, rubidium and lithium by stabilized DC arc plasma emission spectrometry
(Journal of the Serbian Chemical Society, 1998)
Optimization of the conditions for the analytical application of a vertical argon stabilized DC are plasma, seeded by an easily ionizable element, potassium, is described. Such a plasma is used as an excitation source for ...
Densification and crystallization behaviour of colloidal cordierite-type gels
(Journal of the Serbian Chemical Society, 2001)
Three cordierite-type gels were prepared from an aqueous solution of Mg(NO3)(2). a boehmite sol and silica sols of very small particle sizes. The effect of varying the silica particle size on the crystallization and ...
Ammonia adsorption on chemically modified activated carbon cloth
(Journal of the Serbian Chemical Society, 1998)
The effect of CuCl2, CuSO4, and H2SO4 impregnation of activated carbon cloth on ammonia adsorption at 303 K were examined. Cellulose based activated carbon cloth of various activities were used as the starting materials. ...
The STM analysis of a silver mirror surface
(Journal of the Serbian Chemical Society, 2001)
In this work, the structure of a silver mirror surface was examined by the STM technique. It was shown that the Structural characteristics which enable a high degree of mirror reflection from this surface, which is very ...
On the mechanism of strontium incorporation into calcium phosphates
(Journal of the Serbian Chemical Society, 1998)
The results of coprecipitation and sorption of strontium by amorphous and crystalline hydroxyapatite are presented. Coprecipitation experiments, performed over a wide range of experimental conditions, have confirmed that ...
Self-association and association of tri-n-butyl phosphate (TBP) in different diluents
(Journal of the Serbian Chemical Society, 1999)
The interact ion of tri-n-butyl phosphate (TBP) with diluents and its self-association have been investigated. The corresponding equilibrium constants were determined and used to calculate the concentration of TBP monomer. ...
An austempering study of ductile iron alloyed with copper
(Journal of the Serbian Chemical Society, 2005)
Austempered ductile iron (ADI) has proved to be an excellent material as it possesses attractive properties: high strength, ductility and toughness are combined with good wear resistance and machinability. These properties ...