Voltammetric Determination of the Herbicide Linuron Using a Tricresyl Phosphate-Based Carbon Paste Electrode
Jelena Ðorđević,Zsigmond Papp,Valéria Guzsvány,Ivan Švancara,Tatjana M. Trtić-Petrović,Milovan M. Purenović,Karel Vytřas +6 more
TL;DR: The method was 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, showing—for the first time—the applicability of the TCP-CPE for anodic oxidations in direct voltammetry (without accumulation).
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Abstract: 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 μg mL(-1) (1.77 × 10(-4)-5.05 × 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.
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Citations
Advances in the voltammetric analysis of small biologically relevant compounds: a review
Nathan S. Lawrence,Emma L. Beckett,James Davis,Richard G. Compton +3 more
- 01 Jan 2002
TL;DR: In this article, the problems associated with applying voltammetric techniques to the analysis of biologically relevant organics within complex media are identified and, through reviewing the very recent literature (1999-mid-2001), possible solutions are described.
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Analysis of herbicide and its applications through a sensitive electrochemical technique based on MWCNTs/ZnO/CPE fabricated sensor
Ms. Priya,Tachioka, Yuuki +1 more
TL;DR: In this paper , the electrochemical performance of linuron (LNR) was studied by fabricating the carbon paste electrode (CPE) using multiwalled carbon nanotubes (MWCNTs) along with zinc oxide (ZnO) nanoparticles (MWCNTs/ZnOs/CPE).
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Stimuli-enabled reversible switched aclonifen electrochemical sensor based on smart PNIPAM/PANI-Cu hybrid conducting microgel
Bhuvanenthiran Mutharani,Palraj Ranganathan,Shen-Ming Chen,Deepak Vishnu S. K,Deepak Vishnu S. K +4 more
TL;DR: In this article, a composite sensing film (PNIPAM/PANI-Cu), comprising of thermoresponsive polymer poly(N-isopropylacrylamide), conducting polymer poly (aniline) and copper ion, was constructed and modified onto a glassy carbon electrode (GCE).
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Recent advances in graphite powder-based electrodes.
Dolores Bellido-Milla,Laura Cubillana-Aguilera,Mohammed El Kaoutit,Ma Purificación Hernández-Artiga,José Luis Hidalgo-Hidalgo de Cisneros,Ignacio Naranjo-Rodriguez,J.M. Palacios-Santander +6 more
TL;DR: This review summarizes the state-of-the-art, advantages, and disadvantages of graphite powder-based electrodes in electrochemical analysis in the 21st century, devoting special attention to the use of emergent materials as new binders and to the development of other composite electrodes.
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Nanostructured graphitic carbon nitride (g-C3N4)-CTAB modified electrode for the highly sensitive detection of amino-triazole and linuron herbicides.
Ms. Priya,Davalasab Ilager,Nagaraj P. Shetti,Kakarla Raghava Reddy,Suresh M. Tuwar,Tejraj M. Aminabhavi +5 more
TL;DR: In this article, a graphitic carbon nitride (g-C3N4) with cetyltrimethylammonium bromide (CTAB) modified carbon paste electrode was developed and used for the detection of linuron (LNR) and amino-triazole (ATZ) in agro-areas.
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