ADEVĂRUL DESPRE UN MARE OM...XI G.-E. Baiulescu. OMAGIU LAUREATULUI NOBEL ILYA PRIGOGINE... XIII Rodica Vîlcu. ANALYTICAL CHEMISTRY 1. DEVELOPMENT OF A NEW ETHANOL BIOSENSOR WITH ELECTROPOLYMERISED MELDOLA BLUE AS MEDIATOR...19 Camelia Bala, L. Rotariu, Alina Vasilescu and V. Magearu...19 2. DETERMINATION OF TRACE AMOUNTS OF MOLYBDENUM BY ADSORPTIVE STRIPPING VOLTAMMETRY USING MORIN AS CHELATING AGENT...27 Mihaela Buleandră, I.G. Tănase, M. Ionică and M.M. Buleandră...27 3. DETERMINATION OF SULPHIDE BY POTENTIOMETRIC TITRATION...33 V. Dumitrescu, Nina Dumitrescu and Dana Anghel...33 4. PARTICLE-INDUCED X-RAY EMISSION (PIXE): A TOOL FOR MULTIELEMENT ANALYSIS IN THE YEAST CELLS...39 Ileana Cornelia Farcasanu, F. Nishiyama and T. Miyakawa...39 5. ENZYMATIC MARKER FOR TOXICITY OF CONTAMINATED SOILS...45 S. Fleschin, A. Bunaciu and Mihaela Scripcariu...45 6. ANIONS COMPLEXES DU PT(IV) EN ANALYSE ET CONTROLE DES MEDICAMENTS. DETERMINATION ANALYTIQUE DE LA PRENYLAMINE A L AIDE DE K 2 [PT (SCN) 6 ]...49 I. Gănescu, G. Brătulescu, V. Magearu and Anca Gănescu...49 7. ANIONS COMPLEXES DU PLATINE EN ANALYSE ET LE CONTROLE DES MEDICAMENTS. DETERMINATION DE L'ANAFRANILE...57 I. Gănescu, G. Brătulescu, V. Magearu, I. Papa and Anca Gănescu...57 8. DETERMINATION OF VITAMIN C FROM SOME NATURAL PRODUCTS PRESERVED UNDER DIFFERENT STORAGE CONDITIONS...65 Nicoleta Matei and V. Magearu...65
VI 9. PARAMETERS INFLUENCING THE RETENTION MECHANISM OF RALOXIFEN AND ITS RELATED IMPURITIES IN HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY...69 A. Medvedovici, F. Albu and V. David...69 10. FIRST DERIVATIVE SPECTROMETRY FOR DETERMINATION OF A RUBBER ANTIOXIDANT...79 Zenovia Moldovan and LaurenŃia Alexandrescu...79 11. DNA-BASED BIOSENSOR FOR DETECTION OF GENETICALLY-MODIFIED ORGANISMS...85 A.G. Nica, M. Mascini and A.A. Ciucu...85 12. THE SEPARATION AND PURIFICATION OF NEW COMPACT CONDENSED HETEROCYCLIC SYSTEMS WITH THIAZOLIC RING BY HPLC...95 Cristina Rădulescu, C.M. Tărăbăşanu, Ana Maria-Hossu, Ionica Ionită and V. Magearu...95 13. FAST ENZYMATIC METHOD FOR ACETALDEHYDE DETERMINATION IN WINE QUALITY CONTROL...105 L. Rotariu, Adina Arvinte, Simona-Carmen Litescu and Camelia Bala...105 14. ANALYTICAL CHARACTERIZATION OF STABILITY FOR SOME FAT-SOLUBLE VITAMINS IN PHARMACEUTICAL PRODUCTS...111 Mihaela Scripcariu, Ana-Maria Hossu and V. Magearu...111 15. OPTIMIZED MICROWAVE DIGESTION METHOD FOR IRON AND ZINC DETERMINATION BY FLAME ABSORPTION SPECTROMETRY IN FODDER YEASTS OBTAINED FROM PARAFFIN, METHANOL AND ETHANOL...117 A. Tanase, A. Vamanu, Cornelia Niculae and C. Patroescu...117 16. VOLTAMMETRIC BEHAVIOR OF ETHYLMERCURY USING PLATINUM AND GLASSY CARBON ELECTRODES...125 I.G. Tănase, Florentina PanŃîru (Soare), A. Ciucu...125 17. DETERMINATION OF ARYLSULPHONYLBENZAMIDES RELATED PRODUCTS OF ARYLSULPHONYLTHIO-BENZAMIDES BY DERIVATIVE SPECTROMETRY...133 LuminiŃa Vlădescu, Florentina Bădău, Mariana Surmeian and Irinel Adriana Badea...133 INORGANIC CHEMISTRY 18. COMPLEXES WITH TRIAZOLE DERIVATIVES II. MONONUCLEAR COMPLEXES OF Co(II) WITH 1-[METHYLAMINO-N-(O-TOLYL)]-1H-BENZOTRIAZOLE...139 Mihaela Badea, Rodica Olar, Dana Marinescu, Elena Cristurean, Lucia Ivan and Ana Emandi...139
VII 19. COMBINAISONS COMPLEXES DU NICKEL(II) AVEC SALICYLEALDÉHYDE BENZOTHIAZOLYL HYDRAZONE. SYNTHÈSE, CARACTÉRISATION ET PARAMÉTRISATION DU CHAMP DES LIGANDS...147 Mirela Călinescu, Emilia Ion, D. Negoiu et Ana Emandi...147 20. CONTROLLED SYNTHESIS II. REACTION OF Sn(IV) AND Zr(IV) WITH ISATIN-3-TIOSEMICARBAZONE AND n-metil ISATIN-3-TIOSEMICARBAZONE...155 Elena Cristurean, Carmen Pârnău, Mihaela Badea and Rodica Olar...155 21. SYNTHESIS AND CHARACTERISATION OF SOME NEW METAL COMPLEXES OF 3-NITROZO-4-HYDROXY-COUMARIN AND ANTRANILIC ACID...161 Ana Emandi, Mirela Calinescu, Mihaela Badea and Rodica Olar...161 22. SYNTHESIS AND CHARACTERISATION OF SOME NEW COMPLEXES OF Ni(II), Cu(II), Zn(II), Cd(II) AND Hg(II) WITH MIXED LIGANDS (NITROGEN, OXIGEN) DONOR GROUPS...167 Ana Emandi, Anca Nicolae, Mihaela Badea and Rodica Olar...167 23. UREA AND N-SUBSTITUTED UREA DERIVATIVES COMPOUNDS OF IRON (II) ARE SUITABLE INTERMEDIATES IN THE SYNTHESIS OF COMPLEXES MIMIKING THE NONHEME IRON-CONTAINING ENZIMES...173 Monica Ilis, Angela Kriza, Irinel Badea and Veronica Pop...173 24. CONTROLLED SYNTHESIS I. REACTION OF Sn(IV) AND Zr(IV) WITH SCHIFF BASES DERIVED FROM 1-H-INDOL-2,3-DIONE AND DIAMINES...179 Angela Kriza, Carmen Pârnău, N. Popa and T. Roşu...179 25. SYNTHESIS, SPECTROSCOPIC AND MAGNETIC CHARACTERISATION OF SOME NICKEL(II) COMPLEXES WITH 2-AMINO-1,3,4-THIADIAZOLE-5-THIOL...185 Rodica Olar, Mihaela Badea, Nicolae Stanica, Elena Cristurean, Dana Marinescu and Ana Emandi...185 ORGANIC CHEMISTRY 26. NEW PYRROLO[1,2-A][1,10]PHENANTHROLINE DERIVATIVES...191 F. Dumitraşcu, C. Drăghici, Loredana Barbu and Christina Zălaru...191 27. NEW SUBSTITUTED 2-(3,5-DIMETHYL-PYRAZOL-1-YL)- ACETANILIDES WITH PHARMACOLOGICAL ACTIVITY...197 Christina Zălaru, M. Iovu, F. Dumitraşcu, Elena Cristea and Isabela Târcomnicu197 PHYSICAL CHEMISTRY 28. VAPOUR PRESSURE EQUATIONS FOR 2-PHENOXYETHANOL AND ACETYL- PHENOXYETHANOL...201 Zoica Cenuse and Cornelia Cercasov...201
VIII 29. RESEARCH OVER SOME PHYSICAL-CHEMICAL PROCESSES TAKING PLACE IN THE SULPHOUROUS MINERAL WATERS FOR THE KNOWLEDGE OF THEIR QUALITIES ALTERATIONS OCCURRED IN TIME...207 Madalina Ciocan and Rodica Vîlcu...207 30. THE SOLUBILITY OF CO 2 IN SOME C 4 ALCOHOLS AT HIGH PRESSURES...213 I. Găinar and Daniela Bala...213 31. INVESTIGATION ON THE REAL STATE OF SOME RADIONUCLIDES IN VERY DILUTED WATERY SOLUTIONS IN THE PRESENCE OF SOME COMPLEXING AGENTS...219 M. Iliescu, C. Jujea, C. Podina, P. Balea...219 32. ACTUAL TRENDS IN COMPUTATIONAL TOXICOLOGY I. USING PHYSICAL-CHEMICAL DATA TO EVALUATE THE ACUTE TOXICITY (LD 50 )...229 Cristina Mandravel, Valentina Chiosa and Ioana Stanculescu...229 33. SYNTHESIS AND THERMODYNAMIC CHARACTERIZATION OF 4-(P-ETHYL- N-PHENYL-ACETAMIDOXY)- 4 -[P-METHYL-PHENYLAZO]BIPHENYL...233 Viorica Meltzer, Gabriela Rau, Gabriela Iacobescu and Elena Pincu...233 34. DI-ELECTRODE OF TRANSFER AFFECTED BY DIFFUSION m AT ITIES EXPRESSIONS FOR g AND i m ITIES IN POTENTIAL-DEPENDENT KINETIC CONSTANTS I. TRANSFER OF TWO IONS OF SAME CHARGE ACROSS ITIES...239 C. Mihailciuc and S. Lupu...239 35. CO 2 EFFECT ON THE FLAME VELOCITY IN GASEOUS FLAMMABLE MIXTURES. PRELIMINARY TESTS ON STOICHIOMETRIC ETHYLENE-AIR MIXTURE...249 Codina Movileanu, Maria MîŃu, V. Munteanu, Domnina Răzuş and D. Oancea...249 36. CONDITIONING OF ZEOLITE STONE FROM ZALAU. PHYSICAL-CHEMICAL STUDIES...255 S. Neagoe, O. Pântea, Eva TrâmbiŃaşu, Daniela Popovici, D. Bomboş, Fănica Bacalum, Dorina Matei, C. Neagoe, T. Jugănaru and M. Hotinceanu...255 37. COPPER (II) CATALYZED OXIDATION OF 2-AMINOPHENOL IN AQUEOUS MEDIUM...263 Mihaela Puiu and D. Oancea...263 38. NEW THERMODYNAMIC STATE FUNCTIONS...269 Andrei Rotaru...269 39. MODELS OF OSCILLATING CHEMICAL REACTIONS. PARTICULARITIES OF SOME PROPOSED MODELS FOR THE CHARACTERIZATION OF CHEMICAL OSCILLATIONS...277 Rodica Vîlcu and Daniela Bala...277
IX TECHNOLOGICAL CHEMISTRY AND CATALYSIS 40. ETUDE DE LA DESHYDROGENATION OXYDANTE DU n-butane SUR LE PYROPHOSPHATE DE TITANYLE, (TIO) 2 P 2 O 7...287 I.-C. Marcu et I. Săndulescu...287 41. HYDROGENATION REVIVAL OF THE PAREX REAGENT...293 G. Brebeanu, S. Neagoe and C. Savu...293 42. INVESTIGATION OF THE ADSORPTION CAPACITY OF THE ZEOLITE STONE FROM ZALAU...297 S. Neagoe, O. Pântea, Eva TrâmbiŃaşu, Fănica Bacalum, Mihaela Bomboş, V. Dumitrescu, D. Bomboş, Lucia Antonescu, Alexandra Schiopescu, G. Brebeanu,C. Neagoe and I. Câlp...297 43. THE SIMULATION OF MULTIPLE EXTRACTION IN COUNTER CURRENT...303 T.-M. Sturzu, and I.-C. Marcu...303 PhD THESIS IN CHEMISTIY PRESENTED IN 2003 AT THE BUCHAREST UNIVERSITY...309 SCIENTIFIC EVENTS OF THE YEAR 2003...311 TEACHING NEWS...315 NOTE TO THE AUTHORS...317