The ecology of environment nowadays

Sorbational concentration and the following radio- analytical definition of micro-quantities

of the newly formed radio nuclides

H. Vasylyeva1, V. Strelko1, A. Osypenko2

1ISPE National Academy of Sciences of Ukraine,

Henerala Naumova st. 13, Kyiv, Ukraine

tel: (044) 452-93-28, fax: 452-93-27

2Department of Nuclear Physics, Uzghorod National University,

Pidhirna st. 46, Uzghorod, Ukraine

tel: (03122) 2-97-24

The possibility of concentration of the nuclide 128 I was investigated by various types of coal using chemical methods and the method Continue Reading »

THE INVESTIGATIONS OF SMART SURFACE PROPERTIES

P. Staszczuk, M. Planda

Department of Physicochemistry of Solid Surface, Faculty of Chemistry,

Maria Curie-Sklodowska University,

Maria Curie-Sklodowska sq. 3, 20-031 Lublin, Poland

The ability of proteins, as highly chiral species, to exhibit enantioselectivity in their binding of certain ligands is knows very well for many years. Studies of the stereodifferentiating properties of proteins with respect to low molecular weight compounds have been performed by a variety of techniques for the determination of protein – ligand equilibria. A logical e Continue Reading »

EXCHANGE BETWEEN ORGANIC SUBSTANCES AND COMPOUNDS OF METALS IN "BOTTOM SEDIMENTS – WATER" SYSTEM IN CONDITIONS OF MODEL EXPERIMENT

T.A. Vasilchuk, P.N. Linnik

Department of Hydrochemistry, Institute of Hydrobiology,Ukrainian National Academy of Sciences, Geroev Stalingrada avenue 12, 04210 Kyiv, Ukraine,

e-mail:mvasilchuk@mail.ru

Accumulation of heavy metals and organic substances in bottom sediments and their destruction are the important mechanisms that provides the content of these compounds affecting the productivity of the water ecosystems and water quality to regulate. On the one hand, th Continue Reading »

THE STUDIES OF SURFACE PROPERTIES OF PURE

AND MODIFIED ZEOLITES

P. Staszczuk, M. Matyjewicz, M. Majdan

Faculty of Chemistry, Maria Curie-Sklodowska University,

Maria Curie-Sklodowska sq. 3, 20-031 Lublin, Poland

Zeolites history started in the 18th centuary but they were known and used in the archiecture in the acient. Time in 1756 the Swedish mineralogist, amateur, A. F. von Cronstedt observed that some minerals emit much water during the heating process. They looked as if they were in a "boiling" state. He called them zeolites which in Greek means "boiling" stones. In 1930 Continue Reading »

ANALYSIS OF ENERGETIC HETEROGENEITY OF HgBa2Ca2Cu3O8+δ BASED ON PROGRAMMED THERMODESORPTION UNDER THE QUASI-ISOTHERMAL CONDITIONS FROM THE Q-TG AND Q-DTG DATA

D. Sternik1, P. Staszczuk1, V.V. Kutarov2

1Department of Physicochemistry of Solid Surface, Faculty of Chemistry,

Maria Curie-Sklodowska University,

Maria Curie-Sklodowska sq. 3, 20-031 Lublin, Poland

2Physical Research Institute, Odessa I.I. Mechnikov National University

Pastera st. 27, 65026 Odessa, Ukraine

In relation to energies, surfaces can be divided into two types: homogeneous and heterogeneou Continue Reading »

ADSORPTION INVESTIGATION ALIPHATIC DIOLS ON MERCURY ELECTRODE IN LIQUID AMMONIATE OF AMMONIUM NITRATE

A. Persona, Z. Fekner, B. Marczewska

Faculty of Chemistry, Maria Curie-Sklodowska University,

Maria Curie-Sklodowska sq. 3, 20-031 Lublin, Poland

Several substances in the anhydrous state absorb gaseous ammonia form liquid ammoniates (LA). LA\’s are much more comfortable in laboratory practice than liquid ammonia, because the former can be handled at room or even higher temperature without pressure equipment. LA\’s are non-aqueous liquids showing considerable electrical conductivity and they are Continue Reading »