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Study of Voltammetric Determination of Carcinogenic 1-Nitropyrene and 1-Aminopyrene Using a Glassy Carbon Paste Electrode

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Author(s): Jirí Barek | Alexandr Muck | Joseph Wang | Jirí Zima

Journal: Sensors
ISSN 1424-8220

Volume: 4;
Issue: 5;
Start page: 47;
Date: 2004;
Original page

Keywords: Glassy carbon paste electrode | linear scan voltammetry | differential pulse voltammetry | voltammetry with adsorptive accumulation | 1-nitropyrene | 1-aminopyrene.

ABSTRACT
Abstract: Linear scan voltammetry (LSV), differential pulse voltammetry (DPV) and voltammetry with adsorptive accumulation (AAV) at a glassy carbon paste electrode (GCPE) based on mixing glassy carbon spherical microparticles with an organic pasting liquid were used for the determination of trace amounts of carcinogenic 1-nitropyrene (1-NP) (the limit of determination around 2.10-5 mol L-1 for LSV and 2.10-6 mol L-1 for DPV) and 1-aminopyrene (1-AP) (the limit of determination around 3.10-6 mol L-1 for LSV, 1.10-6 mol L-1 for DPV and 1.10-7 mol L-1 for AAV) using a Britton-Robinson buffer – methanol mixture as a base electrolyte. The main advantage of this new type of electrode is its full compatibility with media containing a high amount of organic solvent (methanol, acetonitrile)
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