No 9 Septembre 2014

Tome 59, No 9 Septembre 2014

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1. Laurian VLASE, Dana MUNTEAN, Simona Codruta COBZAC and Lorena FILIP

Development and validation of an HPLC-UV method for determination of synthetic food colorants

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Key words: synthetic food colorants, liquid chromatography, method validation.

2. Maria MITU, Valentin MUNTEANU, Domnina RAZUS and Dumitru OANCEA

Kinetics of isothemal catalytic ignition and combustion of LPG-air mixtures on platinum wire

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Key words: catalytic combustion, ignition, LPG-air.

3. László FERENCZ and Daniela Lucia MUNTEAN

Potential inhibitors for bacterial dihydropteroate synthase. The results of a comprehensive screening based on structural similarity with p-amino-benzoic acid and docking simulation on the surface of enzyme

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Key words: para-aminobenzoic acid, substitutes, structural similarity, screening, docking.

4. Toni Andor GICU, Cristina-Delia NECHIFOR, Valeriu SUNEL, Dana-Ortansa DOROHOI and Corina CHEPTEA

Optimization reaction for obtaining new hydrazidones with biological action

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Key words: hydrazidones, optimization reaction, antitumor activity, NMR and FTIR spectra.

5. Reza GHIASI, Hossein GHIASI and Mahsan AFZALI TABAR

Computational study of molecular structure, 1H NMR, electronic spectra, solvent effect and properties of platinabenzene

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Key words: platinabenzene, NBO analysis, solvent effect, density of states (DOS), temperature dependence.

6. Masoome SHEIKHI and Davood SHEIKH

Quantum chemical investigations on phenyl-7,8- dihydro-[1,3]-dioxolo[4,5-G] quinolin-6(5H)-one

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Key words: DFT, thermodynamic parameter, NBO analysis, HOMO-LUMO energy gap energy gap.

7. Soufiane BOUDJEMAA and Brahim DJELLOULI

Characterization of organomontmorillonite (organo-MMT) and study of its effects upon the formation of poly(methyl methacrylate)/organo- MMT nanocomposites prepared by in-situ solutions polymerisation

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Key words: nanocomposite, montmorillonite, poly (methyl methacrylate), in situ solution polymerisation, thermal stability, mechanical and theological properties.

8. Ana-Maria ARICIU, Gabriela IONITA and Petre IONITA

An EPR spin-trapping study of free radicals in cigarette smoke

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Key words: cigarette smoke, spin-trapping, DMPO, PBN.

9. Dan ROŞU, Mihail BÎRZESCU, Marius-Silviu MILEA, Mihai-Cosmin PASCARIU, Viorel SASCA and Mircea NICULESCU

Synthesis-structure relantionship in the aqueous ethylene glycol-iron(III) nitrate system

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Key words: ethylene glycol, homopolynuclear coordination compound, iron(III) polyoxalate, electronic spectroscopy, Fourier transform infrared spectroscopy.

10. Florentina GATEA, Alina O. MATEI, Eugenia Dumitra TEODOR and Gabriel L. RADU

Accurate quantitation of 17 polyphenols from propolis extracts by reversed-phase liquid chromatography with diode array detection

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Key words: polyphenols, HPLC-DAD, validation, Roumanian propolis extracts.