About: Behaviour of zinc complexes and zinc sulphide nanoparticles revealed by using screen printed electrodes and spectrometry     Goto   Sponge   Distinct   Permalink

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Description
  • 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.
  • 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. (en)
Title
  • Behaviour of zinc complexes and zinc sulphide nanoparticles revealed by using screen printed electrodes and spectrometry
  • Behaviour of zinc complexes and zinc sulphide nanoparticles revealed by using screen printed electrodes and spectrometry (en)
skos:prefLabel
  • Behaviour of zinc complexes and zinc sulphide nanoparticles revealed by using screen printed electrodes and spectrometry
  • Behaviour of zinc complexes and zinc sulphide nanoparticles revealed by using screen printed electrodes and spectrometry (en)
skos:notation
  • RIV/00216305:26620/13:PU112453!RIV15-MSM-26620___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(ED1.1.00/02.0068), Z(MSM6215648902)
http://linked.open...iv/cisloPeriodika
  • 11
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 63043
http://linked.open...ai/riv/idVysledku
  • RIV/00216305:26620/13:PU112453
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • electrochemical analysis, differential pulse voltammetry, screen printed electrode, spectrometry, Zn(II) (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV
  • [AB1CAF7725C8]
http://linked.open...i/riv/nazevZdroje
  • SENSORS
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 13
http://linked.open...iv/tvurceVysledku
  • Adam, Vojtěch
  • Cernei, Natalia Vladimirovna
  • Hubálek, Jaromír
  • Kizek, René
  • Kynický, Jindřich
  • Prášek, Jan
  • Zítka, Ondřej
  • Konečná, Marie
  • Ruttkay-Nedecký, Branislav
  • Kremplová, Monika
  • Kopel, Pavel
  • Nejdl, Lukáš
  • Kudr, Jiří
http://linked.open...ain/vavai/riv/wos
  • 000330321100009
http://linked.open...n/vavai/riv/zamer
issn
  • 1424-8220
number of pages
http://bibframe.org/vocab/doi
  • 10.3390/s131114417
http://localhost/t...ganizacniJednotka
  • 26620
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