Publikace detail

Gold-plated carbon paste electrodes for anodic stripping determination of arsenic

Autoři: Chadim P | Švancara Ivan | Pihlar B | Vytřas Karel

Rok: 2000

Druh publikace: článek v odborném periodiku

Název zdroje: Collection of Czechoslovak Chemical Communications

Název nakladatele: Ústav organické chemie a biochemie AV ČR

Místo vydání: Praha

Strana od-do: 1035-1046

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Uhlíková pastová elektroda s vyloučeným zlatým filmem ke stanovení arsenu anodickou rozpouštěcí analýzou	Uhlíková pastová elektroda s vyloučeným zlatým filmem ke stanovení arsenu anodickou rozpouštěcí analýzou
eng	Gold-plated carbon paste electrodes for anodic stripping determination of arsenic	The applications of gold-plated carbon paste electrodes in anodic stripping voltammetry have been studied in an effort to develop a simple and effective method for the determination of arsenic in water samples. The investigations performed included the choice of supporting electrolyte composition, the optimisation of important experimental parameters, search for appropriate procedure to reduce As(V) to As(III), and some tests of practical applicability of the method, including interference studies. Under optimised conditions, the signal of As was linear within 5-50 mu g l(-1) with a detection limit of about 1 mu g l(-1) As (deposit ion time 10 min). Common elements or ions did not interfere except for Cu(II). The analytical performance of the method has been tested in recovery measurements with model solutions.	gold film electrode;carbon paste support;arsenic(III);arsenic(V);stripping voltammetry;electroreductions;electrochemistry

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