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  • This paper summarises the results of voltammetric studies on the herbicide 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (Linuron), using a carbon paste electrode containing tricresyl phosphate (TCP-CPE) as liquid binder. The principal experimental conditions, such as the pH effect, investigated in Britton-Robinson buffer solutions (pH 2.0-7.0), the peak characteristics for the analyte of interest, or instrumental parameters for the differential pulse voltammetric mode were optimized for the method. As found out, the best electroanalytical performance of the TCP-CPE was achieved at pH 2.0, whereby the oxidation peak of Linuron appeared at ca. +1.3 V vs. SCE. The analytical procedure developed offers good linearity in the concentration range of 1.25-44.20 mýg mL?1 (1.77 x 10?4-5.05 x 10?6 mol L?1), showing --- for the first time --- the applicability of the TCP-CPE for anodic oxidations in direct voltammetry (without accumulation). The method was then verified by determining Linuron in a spiked river water sample and a commercial formulation and the results obtained agreed well with those obtained by the reference HPLC/UV determination.
  • This paper summarises the results of voltammetric studies on the herbicide 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea (Linuron), using a carbon paste electrode containing tricresyl phosphate (TCP-CPE) as liquid binder. The principal experimental conditions, such as the pH effect, investigated in Britton-Robinson buffer solutions (pH 2.0-7.0), the peak characteristics for the analyte of interest, or instrumental parameters for the differential pulse voltammetric mode were optimized for the method. As found out, the best electroanalytical performance of the TCP-CPE was achieved at pH 2.0, whereby the oxidation peak of Linuron appeared at ca. +1.3 V vs. SCE. The analytical procedure developed offers good linearity in the concentration range of 1.25-44.20 mýg mL?1 (1.77 x 10?4-5.05 x 10?6 mol L?1), showing --- for the first time --- the applicability of the TCP-CPE for anodic oxidations in direct voltammetry (without accumulation). The method was then verified by determining Linuron in a spiked river water sample and a commercial formulation and the results obtained agreed well with those obtained by the reference HPLC/UV determination. (en)
Title
  • Voltammetric Determination of Linuron Herbi-cide Using a Tricresyl Phosphate-Based Carbon Paste Electrode
  • Voltammetric Determination of Linuron Herbi-cide Using a Tricresyl Phosphate-Based Carbon Paste Electrode (en)
skos:prefLabel
  • Voltammetric Determination of Linuron Herbi-cide Using a Tricresyl Phosphate-Based Carbon Paste Electrode
  • Voltammetric Determination of Linuron Herbi-cide Using a Tricresyl Phosphate-Based Carbon Paste Electrode (en)
skos:notation
  • RIV/00216275:25310/12:39895284!RIV13-MSM-25310___
http://linked.open...avai/predkladatel
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  • I
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  • 1
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  • 178547
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  • RIV/00216275:25310/12:39895284
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  • Carbon paste electrode; Tricresyl Phosphate; Linuron (en)
http://linked.open.../riv/klicoveSlovo
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  • CH - Švýcarská konfederace
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  • [2C0C538AAD8A]
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  • Sensors
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  • 12
http://linked.open...iv/tvurceVysledku
  • Guzsvány, Valéria
  • Papp, Zsigmond
  • Vytřas, Karel
  • Švancara, Ivan
  • Purenović, Milovan
  • Trtić- Petrović, Tatjana
  • ?orđević, Jelena
http://linked.open...ain/vavai/riv/wos
  • 000299537100007
issn
  • 1424-8220
number of pages
http://bibframe.org/vocab/doi
  • 10.3390/s120100148
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  • 25310
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