Application of multi-electrode, maintenance and internal solution free galvanic cells for determination of selected ions in pharmaceutical samples : [poster presentation] / Teresa BŁAŻ, Jan MIGDALSKI, Bogusław BAŚ, Jerzy Golimowski, Barbara ŹRAŁKA, Andrzej LEWENSTAM // W: Book of abstracts of the 7th Spring Meeting of the International Society of Electrochemistry : Szczyrk, Poland, 22–25 March, 2009. — [Poland] : ISE, [2009]. — S. 237. — Bibliogr. s. 237