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NEJDL, L. RUTTKAY-NEDECKÝ, B. KUDR, J. KREMPLOVÁ, M. CERNEI, N. PRÁŠEK, J. KONEČNÁ, M. HUBÁLEK, J. ZÍTKA, O. KYNICKÝ, J. KOPEL, P. KIZEK, R. ADAM, V.
Originální název
Behaviour of zinc complexes and zinc sulphide nanoparticles revealed by using screen printed electrodes and spectrometry
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
In this study, we focused on microfluidic electrochemical analysis of zinc complexes (Zn(phen)(his)Cl-2, Zn(his)Cl-2) and ZnS quantum dots (QDs) using printed electrodes. This method was chosen due to the simple (easy to use) instrumentation and variable setting of flows. Reduction signals of zinc under the strictly defined and controlled conditions (pH, temperature, flow rate, accumulation time and applied potential) were studied. We showed that the increasing concentration of the complexes (Zn(phen)(his)Cl-2, Zn(his)Cl-2) led to a decrease in the electrochemical signal and a significant shift of the potential to more positive values. The most likely explanation of this result is that zinc is strongly bound in the complex and its distribution on the electrode is very limited. Changing the pH from 3.5 to 5.5 resulted in a significant intensification of the Zn(II) reduction signal. The complexes were also characterized by UV/VIS spectrophotometry, chromatography, and ESI-QTOF mass spectrometry.
Klíčová slova
electrochemical analysis, differential pulse voltammetry, screen printed electrode; spectrometry, Zn(II)
Autoři
NEJDL, L.; RUTTKAY-NEDECKÝ, B.; KUDR, J.; KREMPLOVÁ, M.; CERNEI, N.; PRÁŠEK, J.; KONEČNÁ, M.; HUBÁLEK, J.; ZÍTKA, O.; KYNICKÝ, J.; KOPEL, P.; KIZEK, R.; ADAM, V.
Rok RIV
2013
Vydáno
25. 10. 2013
Nakladatel
MDPI AQ
Místo
Basel, Switzerland
ISSN
1424-8220
Periodikum
SENSORS
Ročník
13
Číslo
11
Stát
Švýcarská konfederace
Strany od
14417
Strany do
14437
Strany počet
21
URL
http://www.mdpi.com/1424-8220/13/11/14417/htm
Plný text v Digitální knihovně
http://hdl.handle.net/11012/70091
BibTex
@article{BUT112143, author="Lukáš {Nejdl} and Branislav {Ruttkay-Nedecký} and Jiří {Kudr} and Monika {Kremplová} and Natalia Vladimirovna {Cernei} and Jan {Prášek} and Marie {Konečná} and Jaromír {Hubálek} and Ondřej {Zítka} and Jindřich {Kynický} and Pavel {Kopel} and René {Kizek} and Vojtěch {Adam}", title="Behaviour of zinc complexes and zinc sulphide nanoparticles revealed by using screen printed electrodes and spectrometry", journal="SENSORS", year="2013", volume="13", number="11", pages="14417--14437", doi="10.3390/s131114417", issn="1424-8220", url="http://www.mdpi.com/1424-8220/13/11/14417/htm" }