Least-squares analysis of ammonia diffusion through PTFE membranes von Tarsiche, I, Hopîrtean, E, Ciurchea, D

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Impedance spectroscopy on non-conventional conductivity cells von Hopirtean, E., Mihalcioiu, F., Forizs, E., Kormos, F.

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Potentiometric differential microdetector with interchange solid membranes used in flow injection analysis von OLENIC, L, HOPIRTEAN, E

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Redox-sensitive membrane-electrode based on the organic free radical octachlorophenothiazinyl von Liteanu, C., Hopîrtean, E., Silberg, I.

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Not Available von Liteanu, C, Hopîrtean, E

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NITRATE-SELECTIVE LIQUID MEMBRANE-ELECTRODES von Liteanu, C., Stefaniga, E., Hopirtean, E.

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Studies on the polymer + plasticizer membrane-electrode—VIII : Use of the PVC + tricresyl phosphate membrane as indicating electrode in potentiometric precipitation titration von Liteanu, C., Hopîrtean, Elena

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Etude sur les électrodes-membranes polymére + plastifiant-II L'utilization de l'électrode-membrane PVC et tricrésylphosphate dans le titrage potentioméque de HCl par NaOH von Liteanu, C, Hopîrtean, E

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Utilization of an Hg(2+)-sensitive membrane-electrode in the complexometric determination of Bi(3+), Fe(3+) and Cr(3+) von Hopîrtean, E, Liteanu, C, Vlad, R

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Flow-injection determination of copper (II) in chemical and electrochemical baths with a potentiometric differential microdetector von Olenic, Liliana, Hopîrtean, Elena, Olenic, Liviu, Crisan, Daniela

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Estimation of the linearity domain limit for the ion-sensitive membrane electrode function von Liteanu, Candin, Popescu, Ionel C, Hopirtean, Elena

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Detection limit on ion-sensitive membrane-electrodes: the electrodic function in the nonlinear domain von Liteanu, Candin, Hopirtean, Elena, Popescu, Ionel C

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Utilization of an Hg2+-sensitive membrane-electrode in the complexometric determination of Bi3+, Fe3+ and Cr3 von Hopîrtean, Elena, Liteanu, C., Vlad, Rodica

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Statistical approach for the selectivity of ion-selective membrane electrodes von Liteanu, Candin, Hopirtean, Elena, Popescu, Ionel C, Rica, Ion, Stefaniga, Eugenia

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