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Voltammetric Determination of Selected Nitro Compounds at a Polished Silver Solid Amalgam Composite Electrode
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SYSNO ASEP 0358309 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Voltammetric Determination of Selected Nitro Compounds at a Polished Silver Solid Amalgam Composite Electrode Author(s) Vyskočil, V. (CZ)
Navrátil, Tomáš (UFCH-W) RID, ORCID
Daňhel, A. (CZ)
Dědík, J. (CZ)
Krejčová, Z. (CZ)
Škvorová, L. (CZ)
Tvrdíková, J. (CZ)
Barek, J. (CZ)Source Title Electroanalysis. - : Wiley - ISSN 1040-0397
Roč. 23, č. 1 (2011), s. 129-139Number of pages 11 s. Action International Conference on Electroanalysis (ESEAC 2010) /13./ Event date 20.06.2010-24.06.2010 VEvent location Gijón Country ES - Spain Event type WRD Language eng - English Country DE - Germany Keywords voltammetry ; silver solid amalgam composite electrode ; drinking water Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects IAA400400806 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000285889900016 DOI 10.1002/elan.201000428 Annotation Voltammetric behavior of selected biologically active organic nitro compounds, namely 2-nitrofluorene, picric acid (2,4,6-trinitrophenol) and metronidazole, has been investigated using direct current voltammetry (DCV) and differential pulse voltammetry (DPV) at a polished silver solid amalgam composite electrode (p-AgSA-CE). The optimum conditions have been found for their determination in a 1:1 mixture of methanol and aqueous Britton-Robinson buffer of pH 5.0 for 2-nitrofluorene and in the aqueous Britton-Robinson buffer solutions of pH 2.0 and 4.0 for picric acid and metronidazole, respectively, with the limits of quantification (L(Q)s) 4, 0.1 and 2 mu molL(-1) (DCV at p-AgSA-CE) and 3, 1 and 4 mu molL(-1) (DPV at p-AgSA-CE) for 2-nitrofluorene, picric acid and metronidazole, respectively. An attempt to increase the sensitivity using adsorptive stripping voltammetry was not successful for all three test substances. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2012
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