caa a22 4500 445881429 CHVBK 20180317145544.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00604-011-0614-3 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0614-3 Gold electrodes modified with gold nanoparticles and thio compounds for electrochemical sensing of dopamine alone and in presence of potential interferents. A comparative study [Elektronische Daten] [Teresa Łuczak, Maria Bełtowska-Brzezinska] Gold electrodes were modified with self assembled layers (SAMs) composed of mercaptopropionic acid, thiodipropionic acid, dithiodipropionic acid, cysteamine and gold nanoparticles and used to study the electrooxidation of dopamine (DA) in solution at pH 7. SAMs endowed with gold nanoparticles gave the highest catalytic effect. The results showed that such electrodes are capable of resolving the oxidation peaks of DA, ascorbic acid, and uric acid which is most favourable with respect to the detection of DA in physiological matrices. Figure Gold electrodes modified with S-containing compound and gold nanoparticles were used for determination of dopamine in aqueous solution. The modified electrodes could clearly resolve the oxidation peaks of dopamine, ascorbic acid and uric acid with peak-to-peak separation enabling determination of these compounds in the presence of each other. Springer-Verlag, 2011 Sensors nationallicence Self assembled layer nationallicence Gold electrode nationallicence Gold nanoparticles nationallicence Neurotransmitters nationallicence Dopamine nationallicence Łuczak Teresa Department of Physical Chemistry, Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, PL-60-780, Poznań, Poland aut Bełtowska-Brzezinska Maria Department of Physical Chemistry, Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, PL-60-780, Poznań, Poland aut Microchimica Acta Springer Vienna 174/1-2(2011-07-01), 19-30 0026-3672 174:1-2<19 2011 174 604 https://doi.org/10.1007/s00604-011-0614-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0614-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Łuczak Teresa Department of Physical Chemistry, Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, PL-60-780, Poznań, Poland aut NATIONALLICENCE 700 1- Bełtowska-Brzezinska Maria Department of Physical Chemistry, Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, PL-60-780, Poznań, Poland aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 174/1-2(2011-07-01), 19-30 0026-3672 174:1-2<19 2011 174 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer