Contents

Membranes and Membrane Technologies

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Vol. 3, No. 3, 2021

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Acid–Base Membranes for Solid Polymer Fuel Cells

A. I. Emelyanov, O. V. Lebedeva, E. A. Malakhova, T. V. Raskulova, Yu. N. Pozhidaev, Yu. A. Verkhozina, L. I. Larina, S. A. Korzhova, G. F. Prozorova and A. S. Pozdnyakov p. 147  abstract

Potentiometric Multisensory System Based on MF-4SC Membranes and Surface Modified Oxides for Analysis of Nicotinic Acid Pharmaceuticals

A. V. Parshina, G. Z. Habtemariam, T. S. Kolganova, E. Yu. Safronova and O. V. Bobreshova p. 155  abstract

Investigation of Anisotropic Composites Based on Anion-Exchange Membranes and Polyaniline by Voltammetry

N. V. Loza, N. A. Kutenko and N. A. Kononenko p. 163  abstract

Effect of High Pressures on the Transport of Liquids through a Commercial Reverse Osmosis Polyamide Membrane on a Porous Substrate

Yu. S. Eremin, M. O. Panchikhin and A. M. Grekhov p. 171  abstract

New Technique for Reducing Reverse Osmosis Concentrate Discharge

A. G. Pervov, A. P. Andrianov, R. V. Efremov and V. A. Golovesov p. 178  abstract

Development of a Portable Membrane Oxygen Concentrator

V. N. Gurkin, G. G. Kagramanov, A. V. Loiko, E. N. Farnosova, A. M. Blanko-Pedrekhon and A. V. Milyaev p. 186  abstract

Effect of the Sodium Chloride–Magnesium Chloride Ratio on the Separation of Salts Using a Nanofiltration Membrane

A. S. Chugunov, V. A. Vinnitskii and K. V. Stepanyuk p. 192  abstract

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