Criterii căutate


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  • 23 de articole
Tip Anul Publicație și Volum/Nr. Realizatori Titlul articolui Secțiunea Pagina Limba
articol de periodic 1967 Revue Roumaine de Chimie, 12-5 LITEANU, Candin (autor) , HOPÎRTEAN, Elena (autor) Le titrage conductomettrique a resistance indicatrice. I. Le titrage conductometrique de l'acide chlohydrique en solutions concentrees de chlorure de sodium 517-522
articol de periodic 1970 Revue Roumaine de Chimie, 15-5 LITEANU, Candin (autor) , HOPÎRTEAN, Elena (autor) Etude sur les electrodes-membranes polymere+plastifiant I. L'obtention et le comportement electrodique de la membrane de PVC et tricresylphosphate sensible aux ions d'hydrogene 749-756
articol de periodic 1970 Revue Roumaine de Chimie, 15-9 LITEANU, Candin (autor) , HOPÎRTEAN, Elena (autor) Etude sur les electrodes-membranes polymere+plastifiant. III. Utilisation de l'electrode-membrane de PCV et tricresyl-phosphate dans le titrage potentiometrique des acides et bases forts 1331-1336
articol de periodic 1971 Revue Roumaine de Chimie, 16-1 LITEANU, Candin (autor) , HOPÎRTEAN, Elena (autor) Etude sur les electrodes-membranes polymere+plastifiant. V. Utilisation de l'electrode-membrane de PCV et tricresyl-phosphate pour la determination des produits sodiques 55-62
articol de periodic 1971 Revue Roumaine de Chimie, 16-4 LITEANU, Candin (autor) , HOPÎRTEAN, Elena (autor) Etude des electrodes-membranes polymere+ plastifiant. VII. Comportrment electrodique de la membrane en PCV+tricresylphosphate enveres quelques cations metalliques 559-563
articol de periodic 1973 Revue Roumaine de Chimie, 18-9 MIOȘCU, Maria (autor) , HOPÎRTEAN, Elena (autor) , LITEANU, Candin (autor) Liquid membrane-electrodes. II. The n-butanol-frit electrode in acid-base potentiometric titration 1637-1641
articol de periodic 1973 Revue Roumaine de Chimie, 18-9 LITEANU, Candin (autor) , HOPÎRTEAN, Elena (autor) , MIOȘCU, Maria (autor) Liquid membrane-electrodes. III. Electrodes with water-immiscible organic liquids in frit. Applications in potentiometric acid-base titrations 1643-1647
articol de periodic 1974 Revue Roumaine de Chimie, 19-1 HOPÎRTEAN, Elena (autor) , LITEANU, Candin (autor) Studies on the electroanalytical behaviour of membrane-electrodes under current IV. The E-p.Ag electrode function and the use of the PVC +tricresylphosphate membrane in the acid-base potentiometri titration at constant direct current 145-156
articol de periodic 1974 Revue Roumaine de Chimie, 19-5 HOPÎRTEAN, Elena (autor) , LITEANU, Candin (autor) , MAȘA, Ana (autor) Studies on the polymer+platicizuer membrane-electrode. XI. Influence of the plasticier of the PCV on its electrode behaviours 921-927
articol de periodic 1974 Revue Roumaine de Chimie, 19-7 HOPÎRTEAN, Elena (autor) , ȘTEFĂNIGĂ, Eugenia (autor) Liquid membrane-electrodes. V. Electrodic bwehaviour of sodiun tetraphenylborate in cyclohexanone to certain monavalent cations 1265-1269
articol de periodic 1975 Revue Roumaine de Chimie, 20-6 HOPÎRTEAN, Elena (autor) , ȘTEFĂNIGĂ, Eugenia (autor) Membrane-electrodes of the mertallic wire-plastic membrane type. II. Ammonium-selective membrane-electrode 863-969
articol de periodic 1975 Revue Roumaine de Chimie, 20-7 POPESCU, I. (autor) , HOPÎRTEAN, Elena (autor) , SAVICI, L. (autor) , VLAD, Rodica (autor) Characterization of ceramic ion-selective membrane-electrodes. IX. Hg2+-sensiitive membrane-electrode 993-999
articol de periodic 1976 Revue Roumaine de Chimie, 21-2 HOPÎRTEAN, Elena (autor) , ȘTEFĂNIGĂ, Eugenia (autor) Membrane-electrodes of The mertallic wire-plastic membrane type. III.Membrane-electrodes for organic cations 305-312
articol de periodic 1976 Revue Roumaine de Chimie, 21-6 LITEANU, Candin (autor) , HOPÎRTEAN, Elena (autor) , VLAD, Rodica (autor) Utilization of a Hg2+-sernsitive membrane - electrode in the determination of some &-amino acids 933-936
articol de periodic 1976 Revue Roumaine de Chimie, 21-9-10 LITEANU, Candin (autor) , HOPÎRTEAN, Elena (autor) , POPESCU, I. (autor) , KEKEDY, N. (autor) , VERESS, Elisabeta (autor) , LITEANU, V. (autor) On a new procedure for obtaining sulphur bioxide starind from calcium sulphate. II. Utilization of phosphogypsum and of natural gypsum with impurities of CaCO3 1395-1404
articol de periodic 1977 Revue Roumaine de Chimie, 22-5 LITEANU, Candin (autor) , HOPÎRTEAN, Elena (autor) , STEFĂNIGĂ, Eugenia (autor) Liquid-membrane electrodes. XI. Tetrafluoroborate-selective liquid membrane-electrode 653-656
articol de periodic 1977 Revue Roumaine de Chimie, 22-8 HOPÎRTEAN, Elena (autor) , VERESS, Elisabeta (autor) , MUREȘAN, Valeria (autor) Liquid-membrane electrodes. VII. Perchlorate-selective membrane-electrode. Construction and characterization 1243-1250
articol de periodic 1977 Revue Roumaine de Chimie, 22-9-10 HOPÎRTEAN, Elena (autor) Liquid-membrane electrodes. X. Liquid-membrane electrode for iron(III) determination 1385-1389
articol de periodic 1978 Revue Roumaine de Chimie, 23-1 HOPÎRTEAN, Elena (autor) , ȘTEFĂNIGĂ, Eugenia (autor) Liquid membrane-electrodes. XII. Liquid membrane-electrides for perchlorate, thiocyanate, tetrafluoroborate and nitrate based on triphenylmethane dyes 137-142
articol de periodic 1978 Revue Roumaine de Chimie, 23-2 HOPÎRTEAN, Elena (autor) , VERESS, Elisabeta (autor) Ion selective membrane-electrodes for organic analysis. I. Liquid membrane-electrode for some organic anions based on cetylpyridinium salt 273-379
articol de periodic 1980 Revue Roumaine de Chimie, 25-5 LITEANU, Candin (autor) , BÎRCĂ, Ion (autor) , HOPÎRTEAN, Elena (autor) On the determination limit 735-743
articol de periodic 1993 Revue Roumaine de Chimie, 38-10 BĂDESCU, Iolanda (autor) , HOPÎRTEAN, Elena (autor) The mercury-coated silver electrode and its use in the control of the discharge of waste waters 1143-1149
articol de periodic 1970 Studii și Cercetări de Chimie, 18-3 LITEANU, Candin (autor) , HOPÎRTEAN, Elena (autor) , MIOȘCU, Maria (autor) Electrozi-membrane și utilizarea lor în analiza chimică 241-272