Detail publikace

Behaviour of zinc complexes and zinc sulphide nanoparticles revealed by using screen printed electrodes and spectrometry

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"
}