Vol 77, No 9 - Abstracts

JSCS Vol 77, No. 9

Publication of this issue is financially co-supported by JP TRANSNAFTA Pančevo

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Whole issue - PDF 3.318 KB

J. Serb. Chem. Soc. 77 (9) 1129-1155 (2012)

UDC 546.3+542.913:547–304.6:541.1.004.12:544.02.004.12; JSCS–4339; doi: 10.2298/JSC120704083V; Review

REVIEW

Transition metal complexes with Girard reagents and their hydrazones

LJILJANA S. VOJINOVIĆ-JEŠIĆ, SLAĐANA B. NOVAKOVIĆ*, VUKADIN M. LEOVAC and VALERIJA I. ČEŠLJEVIĆ

Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia

*Vinča Institute of Nuclear Sciences, Laboratory of Theoretical Physics and Condensed Matter Physics, University of Belgrade, P. O. Box 522, 11001 Belgrade, Serbia

(Received 4 July, revised 8 August 2012)

This is the first review dealing with the coordination chemistry of metal complexes with Girard reagents and their hydrazones. The short introduction indicates the chemical properties and significance of these organic compounds. The next section briefly describes synthetic methods for preparing complexes with Girard reagents, as well as the modes of coordination of these ligands. The last two extensive sections review the preparation, stereochemistry and structural characteristics of metal complexes with Girard hydrazones, including also some newer non-hydrazonic derivatives of Girard reagents.

Keywords: Girard reagents; hydrazones; metal complexes; synthesis; physico-chemical characteristics; X-ray crystallography.

Full Article - PDF 580 KB Available OnLine: 10. 08. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1157–1163 (2012)

UDC 542.913+546.185–034.1:547.752+547.426+544.478; JSCS–4340; doi: 10.2298/JSC110727203B Original scientific paper

Facile synthesis of bis(indolyl)methanes using iron(III) phosphate

FARAHNAZ KARGAR BEHBAHANI and MASOUMEH SASANI

Department of Chemistry, Karaj Branch, IslAMic Azad University, Karaj, Iran

(Received 27 July, revised 10 November 2011)

A new, convenient and high yielding procedure for the preparation of bis(indolyl)methanes in glycerol by the electrophilic substitution reaction of indole with aldehydes in the presence of catalytic AMount of FePO4 (5.0 mol %) as a highly stable and reusable catalyst is described.

Keywords: FePO4; synthesis; bis(indolyl)alkanes; aldehyde; glycerol; catalyst.

Full Article - PDF 252 KB Supplementary Material PDF 418 KB Available OnLine: 01. 12. 2011. Cited by

J. Serb. Chem. Soc. 77 (9) 1165–1174 (2012)

UDC 547.56+547.772+546.76+542.913+546.33–36:615.28–188; JSCS–4341; doi: 10.2298/JSC111130018O Original scientific paper

Microwave-assisted synthesis of novel 4H-chromene derivatives bearing phenoxypyrazole and their antimicrobial activity assessment

CHETAN B. SANGANI, NIMESH M. SHAH, MANISH P. PATEL and RANJAN G. PATEL

Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar-388120, Gujarat, India

(Received 2 January, revised 27 March 2012)

A new series of 4H-chromene derivatives 4a–p bearing the 5-phenoxypyrazole nucleus were synthesized under microwave irradiation by the reaction of 5-phenoxypyrazole-4-carbaldehydes 1a–h, malononitrile 2 and compounds 1,3-cyclohexanedione and dimedone (3a and 3b, respectively) in presence of NaOH as a basic catalyst. All the compounds were screened against three GrAM-positive bacteria (Streptococcus pneumoniae, Clostridium tetani and Bacillus subtilis), three GrAM-negative bacteria (Salmonella typhi, Vibrio cholerae and Escherichia coli) and two fungi (Aspergillus fumigatus and Candida albicans) using the broth microdilution minimum inhibitory concentration (MIC) method. The antimicrobial screening showed that the majority of the compounds were active against C. tetani and B subtilis as well as against C. albicans when compared with standard drugs.

Keywords: phenoxypyrazole; 4H-chromene; multi-component reaction; microwave irradiation; antimicrobial activity.

Full Article - PDF 343 KB Supplementary Material PDF 438 KB Available OnLine: 03. 04. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1175-1180 (2012)

UDC 547.239+542.9+547.857.8+547.78:547.7; JSCS–4342; doi: 10.2298/JSC111014024S Original scientific paper

Efficient one-pot, four-component synthesis of N,N-dibenzyl-1-(5-aryl-1,3,4-oxadiazol-2-yl)cyclobutylAMine derivatives from the reaction of (isocyanoimino)triphenylphosphorane, dibenzylAMine, an aromatic carboxylic acid and cyclobutanone

NAHID SHAJARI, ALI REZA KAZEMIZADEH and ALI RAMAZANI

Research Laboratory of MCRs, Department of Chemistry, Zanjan Branch, IslAMic Azad University, P. O. Box 49195-467, Zanjan, Iran

(Received 14 October 2011)

The four-component reaction of cyclobutanone, dibenzylAMine and (isocyanoimino)triphenylphosphorane in the presence of aromatic carboxylic acids proceeds smoothly at room temperature under neutral conditions to afford N,N-dibenzyl-1-(5-aryl-1,3,4-oxadiazol-2-yl)cyclobutylAMine derivatives in high yields.

Keywords: multicomponent reaction; isocyanide; 1,3,4-oxadiazole; heterocycles.

Full Article - PDF 264 KB Supplementary Material PDF 410 KB Available OnLine: 19. 03. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1181–1189 (2012)

UDC 546.133.2’268.2:547.78:544.478:544.351; JSCS–4343; doi: 10.2298/JSC111031028H; Original scientific paper

Trichloroisocyanuric acid as an efficient homogeneous catalyst for the chemoselective synthesis of 2-substituted oxazolines, imidazolines and thiazolines under solvent-free condition

SEYEDEH FATEMEH HOJATI and SEYEDE ATEFE NEZHADHOSEINY

Department of Chemistry, Sabzevar Tarbiat Moallem University, Sabzevar 9617976487, Iran

(Received 31 October 2011, revised 21 March 2012)

Trichloroisocyanuric acid, as a commercially available and inexpensive catalyst, was used in a new, facile and efficient procedure for the synthesis of 2-oxazolines, 2-imidazolines and 2-thiazolines through the reaction of nitriles with 2-AMinoethanol, ethylenediAMine or 2-AMinoethanеthiol under solvent-free conditions.

Keywords: trichloroisocyanuric acid; oxazoline; imidazoline; thiazoline; solvent-free condition.

Full Article - PDF 339 KB Supplementary Material PDF 411 KB Available OnLine: 22. 03. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1191–1203 (2012)

UDC *Symphytum officinale+582.751+66.067:615.27:576+615.9; JSCS–4344; doi: 10.2298/JSC120106021P; Original scientific paper

Application of membrane processes for the concentration of Symphytum officinale and Geranium robertianum extracts to obtain compounds with high anti-oxidative activity

GABRIELA PAUN, ELENA NEAGU, SIMONA CARMEN LITESCU, PINCU ROTINBERG* AND GABRIEL LUCIAN RADU

Centre of Bioanalysis, National Institute for Research-Development of Biological Sciences, 296 Spl. Independentei, P. O. Box 17–16, 060031, Bucharest 6, Romania

*Biological Research Institute – National Institute of Research-Development, Lascar Catargi Street 47, Iassy, Romania

**Faculty of Applied Chemistry and Materials Science, Polytechnic University of Bucharest, 313 Spl. Independentei, 060042, Bucharest, Romania

(Received 6 January, revised 22 February 2012)

The paper reports the successful application of membranes processes to obtain good quality extracts with compounds of high antioxidative activity and therapeutic value. In this study, the phenolic compounds from two plant species used in Romanian ethno-medicine were investigated and their antioxi/-dant and cytotoxic activities evaluated. Three extracts prepared from Geranium robertianum and Symphytum officinale were concentrated by microfiltration and ultrafiltration. The levels of phenolic compounds and flavonoids were determined by UV–Vis spectroscopy and high-pressure liquid chromatography (HPLC). The free-radical scavenging activity of the concentrated extracts was determined by the 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) method. The preliminary tests of cytotoxic activity for the concentrated extracts were performed on human epidermoid laryngeal carcinoma cell line (Hep-2p) and normal monkey kidney cells (RM). The results showed that all the concentrated extracts had a very low cytotoxicity against healthy cells, but a significant cytotoxic effect on Hep-2p tumor cells. The concentrated extracts had a high antioxidant activity (% DPPH inhibition > 80 %).

Keywords: antioxidant compounds; cytotoxicity; ultrafiltration; Geranium robertianum; Symphytum officinale; free-radical scavenger.

Full Article - PDF 1,976 KB Available OnLine: 07. 03. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1205–1210 (2012)

UDC 546.776–31+542.913+547.72:543.42; JSCS–4345; doi: 10.2298/JSC111110020R; Short communication

SHORT COMMUNICATION

Synthesis and characterization of cis-dioxomolybdenum(VI) complexes having furil as a precursor molecule

DEVENDRA PRATAP RAO, HARDEO SINGH YADAV*, ASHOK KUMAR YADAVA*, SANJAY SINGH** and UMA SHANKER YADAV***

Department of Chemistry, D.A-V. (P.G.) College, Kanpur 208001, Uttar Pradesh, India

*Department of Chemistry, North Eastern Regional Institute of Science and Technology (NERIST), Nirjuli, Arunachal Pradesh, India

**Department of Chemistry, M.G.P.G. College, Gorakhpur, Uttar Pradesh, India

***Department of Chemistry, J. P. University, Chapra, Bihar, India

(Received 30 November 2011, revised 7 February 2012)

The syntheses of some new dioxomolybdenum(VI) complexes having the general formula [MoO2(mac)](acac)2, (where mac = tetraazAMacrocyclic ligands derived from the condensation of furil with 1,2-diAMinobenzene or2,3-diAMinopyridine and their reaction with β-diketones) using the dioxometal ion as a kinetic template are reported. The prepared complexes were characterized by molar conductance, elemental analyses, infrared and electronic data. The spectral data indicate that the ligands act as tetradentate chelating agents. Due to their biological relevance, molybdenum catalyzed oxygen transfer reactions are of great interest. All the dioxomolybdenum(VI) complexes had octahedral geometry with six coordination.

Keywords: dioxomolybdenum(VI); condensation; AMines; macrocyclic complexes.

Full Article - PDF 309 KB Supplementary Material PDF 400 KB Available OnLine: 06. 03. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1211–1222 (2012)

UDC 542.913+66.095.252:547.53–304.9+47.496.3:546.742’982; JSCS–4346; doi: 10.2298/JSC110911052A Short Communication

Synthesis of thiadiazolobenzAMide, via cyclization of thioxothiourea, and its Ni and Pd complexes

FOROGH ADHAMI, NASIM NABILZADEH, FRANZISKA EMMERLING*, MINA GHIASI** and MAJID M. HERAVI**

Department of Chemistry, Shahrrey, IAU, 18155-144, Tehran, Iran

*BAM Federal Institute for Materials Research and Testing, Berlin, Germany

**Department of Chemistry, Alzahra University, Vanak, Tehran, Iran

(Received 11 September 2011, revised 28 February 2012)

Abstract: In this study, a compound, N-(3-methyl-4-oxo-4H-[1,3,4]thiadiazolo[2,3-c][1,2,4]triazin-7-yl)benzAMide, was obtained via two different reactions: 1) reaction of 4-AMino-6-methyl-3-(methylthio)-1,2,4-triazin-5(4H)-one with benzoyl isothiocyanate under removal of methanethiol and 2) reaction of 4-AMino-3,4-dihydro-6-methyl-3-thioxo-1,2,4-triazin-5(2H)-one with benzoyl isothiocyanate under elimination of hydrogen sulfide. In both reactions, a new bond between sulfur and nitrogen atoms was formed and a five-membered ring was created. The oxo thiadiazolo benzAMide was characterized by IR, 1H-NMR and 13C-NMR spectroscopy, and mass spectrometry. X-Ray crystallography was used to shed light on the structure of this new compound. Two new complexes could be generated by coordination of the oxo thiadiazolo benzAMide to Pd(II) and Ni(II) ions. These complexes were analyzed by IR, 1H-NMR and 13C-NMR spectroscopy, conductometry and thermal gravimetry (TGA). The theoretical QM calculation GIAO was also applied to predict the structure of the Pd complex.

Keywords: nucleophilic addition reaction; Pd complexes; QM calculations; GIAO.

Full Article - PDF 377 KB Supplementary Material PDF 247 KB Available OnLine: 22. 05. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1223–1237 (2012)

UDC 667.282.4+667.287:544.6.004.12:537.872; JSCS–4347; doi: 10.2298/JSC110710026J Original scientific paper

Synthesis and photovoltaic properties of octacarboxy-metallophthalocyanine dyes applied in dye-sensitized solar cells

LING JIN, WEI CHEN and DAJUN CHEN

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China

(Received 10 July 2011, revised 19 March 2012)

A series of octacarboxy-metallophthalocyanine dyes with different central metal ions, i.e., MgOCPc, MnOCPc, FeOCPc and ZnOCPc, were designed and synthesized by microwave irradiation. The effects of the introduction of different metal ions with variant 3d orbitals (3d0, 3d5, 3d6, and 3d10, respectively) in the centre of the phthalocyanine rings on the thermal, photophysical, and electrochemical properties of octacarboxy-metallophthalocyanines were characterized and evaluated in detail. The results showed that ZnOCPc and MgOCPc, with closed-shell metal ions, and FeOCPc, with an open-shell metal ion, had excellent thermal properties. However, MnOCPc, with a half-full-shell metal ion, exhibited the lowest decomposition temperature and largest Q-band red shifts. The energy gaps of MgOCPc, MnOCPc, FeOCPc and ZnOCPc were theoretically calculated to be 0.11, 0.10, 0.20 and 0.22V, respectively. Applied in TiO2 nanocrystalline dye-sensitized solar cells (DSSC), the photovoltaic properties of the four dyes were obtained under AM1.5 irradiation (100 mW cm-2).

Keywords: octacarboxy-metallophthalocyanine dyes; 3d orbital; photophysical properties; electrochemical properties; energy gaps; DSSC.

Full Article - PDF 394 KB Available OnLine: 19. 03. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1239–1242 (2012)

UDC 539.215:548.2:621.357.7; JSCS–4348; doi: 10.2298/JSC120203013V; Extended abstract

EXTENDED ABSTRACT

Epitaxial growth by monolayer-restricted galvanic displacement

RASTKO VASILIĆ

Faculty of Environmental Governance and Corporate Responsibility, Educons University, Vojvode Putnika 87, 21208 Sremska KAMenica, Serbia

(Received 3 February 2012)

The development of a new method for epitaxial growth of metals in solution by galvanic displacement of layers pre-deposited by underpotential deposition (UPD) was discussed and experimentally illustrated throughout the lecture. Cyclic voltAMmetry (CV) and scanning tunneling microscopy (STM) were employed to perform and monitor a “quasi-perfect”, two-dimensional growth of Ag on Au(111), Cu on Ag(111), and Cu on Au(111) by repetitive galvanic displacement of underpotentially deposited monolayers. A comparative study emphasizes the displacement stoichiometry as an efficient tool for thickness control during the deposition process and as a key parAMeter that affects the deposit morphology. The excellent quality of the layers deposited by monolayer-restricted galvanic displacement was manifested by steady UPD voltAMmetry and ascertained by the flat and uniform surface morphology that was maintained during the entire growth process.

Keywords: underpotential deposition; crystal growth; surface morphology; STM.

Full Article - PDF 209 KB Available OnLine: 09. 02. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1243–1257 (2012)

UDC 541.121:536.7:536.423.4:541.123.2+547.26’11+547.43; JSCS–4349; doi: 10.2298/JSC111213025S; Original scientific paper

Vapour pressures and vapour–liquid equilibria of binary systems of n-propyl acetate and isobutyl acetate with ethanol or 2-propanol at 0.15 MPa

PEDRO SUSIAL, JOSÉ J. RODRÍGUEZ-HENRÍQUEZ, JOSÉ C. APOLINARIO, VICTOR D. CASTILLO and ESTEBAN J. ESTUPIÑAN

Escuela de Ingenierias Industriales y Civiles, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain

(Received 13 December 2011, revised 18 March 2012)

The vapour pressures of n-propyl acetate, iso-butyl acetate and 2-propanol from 0.004 to 1.6 MPa absolute pressure and vapour–liquid equilibria (VLE) data for the binary systems n-propyl acetate+ethanol, n-propyl acetate+2-propanol, iso-butyl acetate+ethanol and iso-butyl acetate+2-propanol at 0.15 MPa were determined. The experimental VLE data were verified with the van Ness Test and the Fredenslund Criterion. The n-propyl acetate+ethanol and +2-propanol binary systems have an azeotropic point at 0.15 MPa. Different versions of the universal quasichemical functional group activity coefficients and analytical solutions of groups contribution models were applied.

Keywords: vapour–liquid equilibria isobaric data; phase equilibrium; binary system; esters; alcohols.

Full Article - PDF 311 KB Supplementary Material PDF 403 KB Available OnLine: 19. 03. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1259–1271 (2012)

UDC 66.061+622.349.2:669.71:519.22:510.644; JSCS–4350; doi: 10.2298/JSC110526193D; Original scientific paper

Artificial neural network prediction of aluminum extraction from bauxite in the Bayer process

ISIDORA ĐURIĆ, IVAN MIHAJLOVIĆ, ŽIVAN ŽIVKOVIĆ AND DRAGANA KEŠELJ*

University of Belgrade, Technical Faculty in Bor, Serbia

*Faculty of Technology Zvornik, Republic of Srpska, Bosnia and Herzegovina

(Received 26 May 2011)

This paper presents the results of statistical modeling of the bauxite leaching process, as part of the Bayer technology for alumina production. Based on the data collected during the period 2008–2009 (659 days) from the industrial production in the Alumina Factory Birač, Zvornik (Bosnia and Herzegovina), the above-mentioned process was statistically modeled. The dependant variable, which was the main target of the modeling procedure, was the degree of Al2O3 recovery from boehmite bauxite during the leaching process. The statistical model was developed as an attempt to define the dependence of the degree of Al2O3 recovery on the input variables of the leaching process, i.e., the composition of the bauxite, the composition of the sodium aluminate solution and the caustic module of the solution before and after the leaching process. As statistical modeling tools, multiple linear regression analysis (MLRA) and artificial neural networks (ANNs) were used. The fitting level obtained using MLRA, was R2 = 0.463, while the ANN resulted in an R2 value of 0.723. In this way, the model defined using the ANN methodology could be used for the efficient prediction of the degree of recovery of Al2O3 as a function of the process inputs, under the industrial conditions of the Alumina Factory Birač, Zvornik. The proposed model also has a universal character and, as such, is applicable in other factories employing the Bayer technology for alumina production.

Keywords: leaching; bauxite; Bayer process; statistical modeling; neural networks.

Full Article - PDF 688 KB Available OnLine: 23. 11. 2011. Cited by

J. Serb. Chem. Soc. 77 (9) 1273–1285 (2012)

UDC 66.094.3+546.226:53:66.021.3:54–145.; JSCS–4351; doi: 10.2298/JSC111010218V; Original scientific paper

An aqueous chemistry module for a three-dimensional cloud resolving model: sulfate redistribution

DRAGANA VUJOVIĆ and VLADAN VUČKOVIĆ

University of Belgrade, Faculty of Physics, Department of Meteorology, Dobračina 16, Belgrade, Serbia

(Received 10 October, revised 16 December 2011)

An aqueous chemistry module was created and included into a complex 3D cloud-resolving mesoscale advanced regional prediction system (ARPS) model to exAMine the characteristics of in-cloud sulfate. The complex orography of Serbia was included in the model. The chemical species included in the module were sulfur dioxide, sulfate ion, AMmonium ion, hydrogen peroxide and ozone. Six water categories are considered: water vapor, cloud water, rain, cloud ice, snow and hail. Each chemical species in each microphysical category was represented by a differential equation of mass continuity. This paper gives a detailed description of the chemistry module and demonstrates the utility of an atmospheric model coupled with the chemistry module in forecasting the redistribution of chemical species in all water categories. The main mean microphysical and chemical conversion rates of sulfate averaged over a 2 h simulation period for a base run were for the oxidation of S(IV) in rain water and cloud water, SO42- scavenging by Brownian diffusion in cloud droplets and cloud ice as well as the impact scavenging of SO42- by rain. The calculated values of sulfates in all water categories and the shape of the sulfate profiles depend on radar reflectivity.

Keywords: oxidation; sulfate transfer; cumulonimbus; microphysics; mass transfer.

Full Article - PDF 409 KB Supplementary Material PDF 440 KB Available OnLine: 04. 04. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1287–1300 (2012)

UDC 66.061+669.24/.26:631.422+541.45–36; JSCS–4352; doi: 10.2298/JSC110929209S; Original scientific paper

Ultrasound-assisted extraction of matrix elements and heavy metal fractions associated with Fe, Al and Mn oxyhydroxides from soil

SVETLANA M. STANIŠIĆ, LJUBIŠA M. IGNJATOVIĆ, IVAN ANĐELKOVIĆ*, MILICA C. STEVIĆ, ALEKSANDRA M. TASIĆ and MARJETKA SAVIĆ BISERČIĆ

Faculty of Physical Chemistry, University of Belgrade, Studentski Trg 12–16, Belgrade, Serbia

*Faculty of Chemistry, University of Belgrade, Studentski Trg 12–16, Belgrade, Serbia

(Received 29 September, revised 17 November 2011)

Abstract: Single agent extractions of major and trace metals from soil sAMples were conducted by means of a rotary mixer and an ultrasonic bath with sonication times of 10, 20, 30, 40 and 50 min. The sequential extraction was undertaken according to the the European Community Bureau of Reference. The obtained soil extracts were analyzed by by inductively coupled plasma-optical emis¬sion spectrometry and according to the results, the rotary mixer-assisted extraction was more efficient in the case of alkaline earth elements. However, by use of ultrasound, several times higher AMounts of matrix elements (Fe, Al and Mn) and heavy metals predominantly associated with Fe, Al and Mn oxyhydroxides were extracted. The increase of the sonication time failed to improve the extraction yields. The changes in the conductivity, pH, redox potential, particle size diAMeter and zeta potential of colloid particles with increasing sonication time were measured. The extraction mechanism and expressed selectivity of ultrasound is discussed and an explanation is suggested.

Keywords: soil analysis; extraction mechanism; sequential extraction; soil phases.

Full Article - PDF 415 KB Available OnLine: 02. 12. 2012. Cited by

J. Serb. Chem. Soc. 77 (9) 1301–1310 (2012)

UDC *Flavoparmelia caperata+582.29:504.53.054+669:349.6.000.57; JSCS–4353; doi: 10.2298/JSC111124031M; Original scientific paper

Epiphytic lichen Flavoparmelia caperata as a sentinel for trace metal pollution

TATJANA MITROVIĆ, SLAVIŠA STAMENKOVIĆ, VLADIMIR CVETKOVIĆ, MILOŠ NIKOLIĆ, RADA BAOŠIĆ*, JELENA MUTIĆ*, TATJANA ANĐELKOVIĆ** and ALEKSANDAR BOJIĆ**

Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia

*Faculty of Chemistry, University of Belgrade, Studentski trg 12, P. O. Box 51, 11158 Belgrade, Serbia

**Department of Chemistry, Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia

(Received 24 November 2011, revised 10 February 2012)

The widely spread lichen specie Flavoparmelia caperata was used in a biomonitoring study for atmospheric trace metal pollution in natural ecosystems in south-eastern Serbia. The concentration and distribution pattern of 21 metals in lichens were determined by inductively coupled plasma atomic emission spectrometry. The difference observed between metal deposition in the peripheral and central parts of lichen thalli reflected air quality changes in the last and previous years. These findings were confirmed with principal component analysis. The study demonstrated the accumulation of Ba, K, Mg, Na, Tl and Zn in the peripheral parts of thalli, while As, B, Cd, Cr, Cu, Fe, Ga, In, Li, Ni, Pb and Se were concentrated in the central parts of thalli.

Keywords: lichen; Flavoparmelia caperata; trace metals; sentinel; biomonitoring.

Full Article - PDF 3,343 KB Available OnLine: 04. 04. 2012. Cited by

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