Original title: Electrochemical Analysis of Carrageenans. The Effect of Acetate Concentration
Authors: Kos, S.S. ; Paleček, Emil
Document type: Papers
Conference/Event: Moderní elektrochemické metody /36./, Jetřichovice (CZ), 20160523
Year: 2016
Language: eng
Abstract: kappa-, iota-, and lambda-carrageenans are polysaccharides (PSs) which produce electrocatalytic chronopotentiometric peak H-ps in acetate buffer (pH 5.2) on the hanging mercury drop electrode (HMDE). Here we show that this peak (E-p1.8V) increases with the acetate concentration Using a. c. voltammetry we found that the appearance and the observed increase of peak H-PS is accompanied by a decrease of capacitive current below the background elecnolyte around1.8 V, suggesting strong adsorption of the negatively charged PS at the negatively charged HMDE. Compared to carrageenany dextran did not produce peak H-PS and did not strongly adsorb at negatively charged electrode.
Keywords: carageenans; chronopotentiometry; peak H-ps; polysaccharides
Project no.: GA15-15479S (CEP)
Funding provider: GA ČR
Host item entry: XXXVI. Moderní elektrochemické metody. Sborník přednášek, ISBN 978-80-905221-4-5

Institution: Institute of Biophysics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0297886

Permalink: http://www.nusl.cz/ntk/nusl-396408


The record appears in these collections:
Research > Institutes ASCR > Institute of Biophysics
Conference materials > Papers