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Screen-printed Carbon Electrodes Modified with Lead Film Deposited Using Different Plating Methods as Sensors in Anodic Stripping Voltammetry
Authors: Tyszczuk-Rotko Katarzyna | Metelka Radovan | Vytřas Karel
Year: 2013
Type of publication: článek v odborném periodiku
Name of source: Electrochimica Acta
Publisher name: Pergamon-Elsevier Science Ltd.
Place: Oxford
Page from-to: 335-340
Titles:
Language Name Abstract Keywords
cze Uhlíkové tištěné elektrody s filmem olova vytvořeným různými technikami depozice jako senzory v anodické rozpouštěcí voltametrii Studie přípravy a charakterizace uhlíkových tištěných elektrod s in situ a ex situ filmem olova se zaměřením na jejich analytickou výkonnnost v rozpouštěcí voltametrii. Uhlíkové tištěné elektrody s ex situ filmem olova byly připraveny a) elektrochemickou depozicí olova na povrch elektrody a b) elektrochemickou depozicí olova do meziprostoru vzoru z koloidního krystalu vytvořeného na povrchu elektrody. Elektrody byly testovány jako potenciální senzory pro stanovení zinku anodickou rozpouštěcí voltametrií v prostředí 0,01 M kyseliny chlorovodíkové. Byla pozorována zvýšená proudová odezva na elektrodách s filmem olova deponovaným přes koloidní krystal v důsledku porézního charakteru filmu s velkou aktivní plochou povrchu. film olova; uhlíkové tištěné elektrody; koloidní krystal; anodická rozpouštěcí voltametrie; zinek
eng Screen-printed Carbon Electrodes Modified with Lead Film Deposited Using Different Plating Methods as Sensors in Anodic Stripping Voltammetry In this work a study on the preparation and characterization of the lead film in situ and ex situ plated screen-printed carbon electrodes (PbF/SPCEs) was presented, focusing in particular on their attractive stripping analytical performance. The lead film ex situ plated screen-printed carbon electrodes were prepared using methods based on: (a) the electrochemical deposition of lead film on the screen-printed carbon electrode surface and (b) the electrochemical deposition of lead into the interstitial space of a colloidal crystal template formed on SPCE. The electrodes of interest were tested as novel, potential sensors for the anodic stripping voltammetric determination of zinc traces in nondeaerated solution of 0.01 mol L-1 hydrochloric acid. A comparison, of the stripping performance between a bare screen-printed carbon electrode and the PbF/SPCEs prepared with use of the investigated plating methods revealed a distinct advantage of the lead film ex situ plated screen-printed carbon electrode prepared with the use of a colloidal crystal template. This electrode shows an increase in electrochemical performance due to the porosity that gives this material a high active surface area. lead film; screen-printed carbon electrodes; colloidal crystal template; anodic stripping voltammetry; zinc

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