Electrochemical analysis of organic pollutants

Smyth, W. Franklin; Smyth, Malcom R.

doi:10.1351/pac198759020245

Cited by 22 publications

(4 citation statements)

References 24 publications

(24 reference statements)

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“…Electroanalytical techniques have been shown to be very useful in the study of toxic substances, used for disease and pest control, such as pesticides, mainly because of environmental concerns such as the contamination of water resources [14][15][16][17]. The use of a bare glassy carbon electrode for the detection of bentazone in commercial samples has already been reported [18].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Determination of the Herbicide Bentazone Using a Carbon Nanotube β‐Cyclodextrin Modified Electrode

et al. 2013

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An electrochemical sensor has been developed for the determination of the herbicide bentazone, based on a GC electrode modified by a combination of multiwalled carbon nanotubes (MWCNT) with b-cyclodextrin (b-CD) incorporated in a polyaniline film. The results indicate that the b-CD/MWCNT modified GC electrode exhibits efficient electrocatalytic oxidation of bentazone with high sensitivity and stability. A cyclic voltammetric method to determine bentazone in phosphate buffer solution at pH 6.0, was developed, without any previous extraction, clean-up, or derivatization steps, in the range of 10-80 mmol L À1 , with a detection limit of 1.6 mmol L À1 in water. The results were compared with those obtained by an established HPLC technique. No statistically significant differences being found between both methods.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Determination of the Herbicide Bentazone Using a Carbon Nanotube β‐Cyclodextrin Modified Electrode

et al. 2013

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“…Trace levels of many organic compounds with electroactive groups can also be detected by means of ESA [192][193][194] . The accumulation of target organic compounds can proceed according to different protocols 20,21 .…”

Section: Organic Compoundsmentioning

confidence: 99%

Electrochemical stripping analysis

Ariño

Banks

Bobrowski

et al. 2022

Nat Rev Methods Primers

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Electrochemical stripping analysis (ESA) is a trace electroanalytical technique for the determination of metal cations, inorganic ions, organic compounds and biomolecules. It is based on a pre-concentration step of the target analyte(s), or a compound of the target, on a suitable working electrode. This is followed by a stripping step of the accumulated analyte using an electroanalytical technique. Advantages of ESA include high sensitivity and low limits of detection, multi-analyte capability, low cost of instrumentation and consumables, low power requirements, potential for on-site analysis, speciation capability and scope for indirect biosensing. This Primer covers fundamental aspects of ESA and discusses methods of pre-concentration and stripping, instrumentation, types of working electrodes and sensors, guidelines for method optimization, typical applications, data interpretation and interferences, and method limitations and workarounds. Finally, the current trends and future prospects of ESA are highlighted.

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“…DPV at GCPE can be used for the determination of a mixture of 2-aminofluorene (42) and 2,7-diaminofluorene (43) [203] and for the determination of micromolar to nanomolar concentrations [204] of some other carcinogenic aromatic amines. Further examples can be found in reviews [169,205]. instead of an unmodified one [207].…”

Section: Voltammetric Determinationmentioning

confidence: 99%