Impurities in marbles from the deposits in Petrovac na Mlavi, near Gostivar (Duf and Sušički Most) and Venčac in Yugoslavia
have been determined by activation analysis. The impurities of Na, Mn and Cu were determined from the characteristic photopeaks
with γ-energies of 1.38 and 2.78 MeV (24Na); 0.511 MeV (64Cu) and 0.850 MeV (56Mn), and from the corresponding half-lives of these radioisotopes. The concentrations of Mn, Na and Cu were also determined
in every marble sample.
The theoretical approaches to the biogeochemical examination of continental water systems in Yugoslavia are discussed.
These water systems have been characterized by the parameters (partial and integral contents of elements CX) of the components of these systems, vir. living and non-living matter (non-living matter: materials dissolved in water CW, suspended and bed materials Csm and Cbm, soil in the rivers basin Cs; living matter Cvivo: plankton Cp, algae Cal, benthos Cb, shells and crustacea Csc, fish Cf). The values of the integral contents of Cr, Sb, Sc, Fe, Co, La and Na in the components of the rivers Danube, Sava, V. Morava,
Tisa and Karas are presented and discussed.
In this paper are presented the theoretical approaches and some considerations of the TE-role in biological processes of diseases development in HCM-specific diagnostic series (N, CCH, CU, AT and ACa) and the influence of the pathological alterations on the numerical changes of CE (contents of elements) and D (distribution coefficient) parameter values in the mentionend serier. The CE and D parameters for elements, Cr, Fe, Co, Zn, Sb and Sc are obtained by INAA of HCM and were verified and evaluated by statistical treatments in parts 1 and 2 of this communication. The following can be concluated by statistical treatments in parts 1 and 2 of this communication. The following can be concluded: — the CE parameters can still not be used as the absoloute measure of the pathological alterations in HCM-DS (insufficient knowledge of TE-role in living matter); — the D parameters could be used as the relative measure of pathological alterations in such DS, and — numerical changes of CE and D parameters in DS could be explained on the basis of biological/biochemical behaviour of the TE found in HCM-DS and on the possible variations of D parameters (as a function of CE parameters) for the cases: (1) CE
CE¨' and (2)CE
CE¨' presented in this paper.
The aim of the present work was to investigate iron, cobalt and chromium distribution in samples of living and non-living
matter by using instrumental neutron activation analysis (INAA). Investigations were carried out starting with water systems
components, such also specias living in these systems and biological tissues from rat and human organs. The following conclusions
have been drawn for elements distribution in the relation enviromment/living matter: (1) iron, cobalt and chromium contents
in plankton are very close to these found in suspended materials; (2) among all the investigated living organisms, the highest
contents of investigated elements have been found in fish; (3) inspite of the contents of iron, cobalt and chromium being
somewhat lower in bentos and crustacea than in suspended materials, all the obtained values are very close, and (4) human
liver has somewhat higher iron- and cobalt-contents than rat liver, which, however, has higher chromium concentration. Of
all the investigated living organisms chromium content was the lowest in human liver.
In this paper data are presented concerning the distribution of Cr, Sb, Sc, Fe, Co, and Zn in HCM, of patients with histopathologically and clinically verified findings: Healthy—N; Colitis Chronica-CCh; Colitis Ulcerosa-CU; Adenoma Tubulare-AT; Adenocarcinoma-ACa. The data are presented on the basis of the contents of elements (CE parameter expressed in nkg/g of lyophilized HCM) obtained by INAA and calculated by computer programs, with statistical parameters (n, XBAR, XMIN-XMAX, R, V, SE and SDEV). The values of CE parameters of elements found in all diagnostic groups (decreasing order) are also presented. The minimal
Authors:K. Kostic, R. Draškovic, M. Ratkovič, D. Kostić, and R. Draškovic
In our biological investigations some trace elements have been determined by instrumental radioactivation analysis in organs
of normal rats. The results of trace element distribution of Cr, Zn, Br, Sb, Fe, Co, Sc, Ag and Na in liver, spleen, brain,
lung, kidney and heart of normal rats are presented in the paper.
Authors:R. Drašković, R. Radosavljevič, and T. Tasovac
Trace elements in some continental water systems in Yugoslavia have been investigated by IAA. The results of the determination
of trace elements are presented in this paper on the basis of the theory of concentration parameters (Cx) for the components of the rivers (dissolved materials in water, suspended and bed materials, plankton, benthos, algae, crustacea
and fishes) lakes, swamps and in the soils. The investigated water system were rivers Danube, Sava, Tisa and V. Morava, lakes
of Skadar, Ohrid, Dorjan, Bor, the Melenci Swamp and the soils from different regions of the Danube basin. This paper presents
a short survey of our investigation of some continental water system in Yugoslavia by IAA.
Authors:J. Vučina, V. Šćepanović, and R. Drašković
Some trace elements in samples from the aluminium industry (Aluminium Kombinat, Titograd, Yugoslavia) were determined by instrumental
neutron activation analysis. Samples characteristic for alumina production (bauxite, red sludge), reduction cell components
(alumina, anode, AlF3, cryolite) and aluminium produced (purity 99.5–99.7%) have been analyzed. 10 trace elements were determined under a given
set of working conditions and followed through the routine production.
Authors:Lj. Jaćimović, R. Drašković, and B. Ostojić
The contents of Hg, Cr, La, Sc, Co, Fe and Sb in some human concretions have been determined by instrumental radioactivation
analysis. Urinary bladder and kidney concretions surgical removed from the patient have also been analyzed.
In this paper are presented the results of statistical vertification and evaluation of the CE (content of element) and D (distribution coefficient) parameters of Cr, Fe, Co, Zn, Sb and Sc in HCM-diagnostic series (N, CCh, CU, AT and ACa) by statistical treatments (SRCC, F and T testing, regression analysis). The following data have been determined: recirocal dependence (D parameters) of pairs of contents of elements CCr/CCo, CFe/CCo, CCr/CFe, CSc/CoFe, CSc/CCr and CSc/CCo on different LS (1.5 and 10%) by SRCC testing; dependence of CE parameters for Sc, Co and Sb in all diagnostic groups on different LS-F-testing; reciprocal dependence of CE parameters for some of the elements found (Sc, Co, Sb) in HCM DS on different LS-T-testing, and depedence of CE=F (CE¨') functions for some pairs of elements found in all DG with R2 MAX>0.8. Regression analysis type functions: Pow, POLYP and POLYC. These investigations indicate the possiblities of CE and D parameter application for specific numerical diagnosis (Medical Elementology).