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• Muck, A
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Sensors 2004, 4(5), 47-57; doi:10.3390/s40500047

Article

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

Jirí Barek ^1,* , Alexandr Muck ², Joseph Wang ³ and Jirí Zima ¹

¹ UNESCO Laboratory of Environmental Electrochemistry, Department of Analytical Chemistry, Charles University, 128 43 Prague 2, Czech Republic ² Max-Planck Institute for Chemical Ecology, Hans-Knoell-Str.8, 07745 Jena, Germany ³ SensoChip Laboratory, Department of Chemistry and Biochemistry, New Mexico State University, MSC 3C, Las Cruces, NM 88003, USA

* Author to whom correspondence should be addressed.

Received: 30 April 2004; Accepted: 30 May 2004 / Published: 20 July 2004

Download PDF Full-Text [211 KB, uploaded 28 August 2008 16:06 CEST]

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)

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

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