Electroanalysis of Nitro and Amino Derivatives of Polycyclic Aromatic Hydrocarbons

Vyskočil, Vlastimil; Barek, Jiřı́

doi:10.2174/138527211798357209

Cited by 59 publications

(34 citation statements)

References 188 publications

(207 reference statements)

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“…This causes increasing demand for methods suitable for the determination of trace amounts of dangerous compounds in complex environmental or biological matrices. Many of these compounds contain electrochemically easily reducible nitro group, e.g., nitrated polycyclic aromatic hydrocarbons (NPAHs), which allows us to use modern polarographic and/or voltammetric techniques for this purpose [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…Although these techniques are frequently used for identification and determination of NPAHs, less expensive polarographic and voltammetric techniques play a significant role in the nanomolar range detection of these ecologically important compounds [5,[19][20][21]. Moreover, sensitivity of voltammetric methods can be often increased by their combination with preliminary separation and preconcentration steps [22,23].…”

Section: Introductionmentioning

confidence: 99%

“…A hanging mercury drop electrode (HMDE) represents an electrode with much lower consumption of mercury as compared with the DME [19,25]. The whole voltammetric curve can be measured at one mercury drop, and the combination of the HMDE with adsorptive stripping voltammetry (AdSV) [4] enables determination of nanomolar concentrations of, for instance, genotoxic NPAHs [5].…”

Section: Introductionmentioning

confidence: 99%

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Polarographic and voltammetric determination of genotoxic 4-nitroindane at mercury electrodes

2015

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Determination and electrochemical investigation of genotoxic nitrated polycyclic aromatic hydrocarbon 4-nitroindane (4-NI) were carried out using direct current tast polarography (DCTP) and differential pulse polarography (DPP) at a classical dropping mercury electrode (DME) and using direct current voltammetry (DCV), differential pulse voltammetry (DPV), and cyclic voltammetry (CV) at a hanging mercury drop minielectrode (HMDmE). The following optimal media for the determination of 4-NI were found: methanol-BrittonRobinson (BR) buffer of pH 12.0 (1:1) for DCTP and DPP, methanol-BR buffer of pH 9.0 (1:9) for DCV, and methanol-BR buffer of pH 8.0 (1:9) for DPV. For CV investigation, mixtures of methanol-BR buffer of pH 3.0, 8.0, and 12.0 (1:1) were used. The limits of quantification were: 0.65 lmol dm -3 (DCTP at the DME), 0.10 lmol dm -3 (DPP at the DME), 0.075 lmol dm -3 (DCV at the HMDmE), and 0.070 lmol dm -3 (DPV at the HMDmE). An attempt to increase the determination sensitivity using adsorptive accumulation of 4-NI on the HMDmE surface was not successful. The newly developed polarographic and voltammetric methods were successfully applied for the determination of 4-NI in model samples of drinking and river water. Graphical abstract -300 -400 -500 -600 -700 -800 -10 -15 -20 -25 -30 NO 2 I / nA E / mV 0 . 0 0 . 4 0 . 8 1 . 2 0 -4 -8 -12 c / µmol dm -3

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polarographic and voltammetric determination of genotoxic 4-nitroindane at mercury electrodes

2015

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“…GC including GC-MS is most frequently used despite the necessity to derivatize the amines to overcome their polar character [25,27,[30][31][32][33][34][35]. The derivatization step is not necessary for HPLC, which can be (beside the universal spectrophotometric detection [30,36]) coupled to the more selective fluorescence, MS [27] or electrochemical detection [20,21,[37][38][39][40]. Recently, several rapid methods based on capillary electrophoresis [41,42] or m-HPLC [43] have been described.…”

Section: Introductionmentioning

confidence: 99%

Thin‐Layer and Wall‐Jet Arrangement of Amperometric Detector with Boron‐Doped Diamond Electrode: Comparison of Amperometric Determination of Aminobiphenyls in HPLC‐ED

2012

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The performance of a microcrystalline boron-doped diamond electrode in a thin-layer and wall-jet amperometric detection cell for HPLC was compared with the spectrophotometric detection. Comparison of peak parameters of 2-, 3-, and 4-aminobiphenyl after their separation revealed satisfactory repeatabilities of signal responses for all detection modes and regarding electrochemical detection higher current densities and higher noise for the thin-layer arrangement, and a slightly wider linear dynamic range of calibration dependencies and lower quantitation limits in the 10 À8 mol L À1 concentration range for the wall-jet arrangement. This detection mode was further employed for the determination of studied aminobiphenyls in model samples of the synthetic colorant tartrazine. Using solid phase extraction for the preliminary separation and preconcentration of the analytes the limit of quantitation was lowered to nanomolar concentrations.

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“…However, it is very toxic to humans and difficult to degrade in the ecological environment as a kind of environmental pollutant, thus the determination of DHB is of great interest [1][2][3]. Up to now, several methods have been developed for the determination of DHB, including gas chromatography [4], gas chromatography-mass spectrometry [5], liquid chromatographymass spectrometry [6], high performance liquid chromatography (HPLC) [7], room-temperature phosphorescence [1] and electrochemical techniques [8].…”

mentioning

confidence: 99%

A glassy carbon electrode modified with a multiwalled carbon nanotube@reduced graphene oxide nanoribbon core-shell structure for electrochemical sensing of p-dihydroxybenzene

Zhu

Zou

et al. 2014

Microchim Acta

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Multiwalled carbon nanotubes (MWCNT) were covered with reduced graphene oxide nanoribbons (rGONR) to give a material with a core-shell heterostructure of the type MWCNT@rGONR. It was obtained by (a) longitudinal partial unzipping of MWCNT to form MWCNT@GONR, and (b) subsequent chemical reduction with hydrazine to give MWCNT@rGONR. The MWCNT@rGONR heterostructure was used to modify a glassy carbon electrode (GCE) to obtain an electrochemical sensor for p-dihydroxybenzene (DHB). The synergistic effects of the MWCNT and the rGONR results in a distinctly improved redox current towards DHB compared to a bare GCE, an MWCNT/GCE, and an MWCNT@GONR/GCE. At the working voltage range from −100 to 400 mV, it displays a linear response to DHB in the 80 to 3000 nM concentration range with a 20 nM detection limit.

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Electroanalysis of Nitro and Amino Derivatives of Polycyclic Aromatic Hydrocarbons

Cited by 59 publications

References 188 publications

Polarographic and voltammetric determination of genotoxic 4-nitroindane at mercury electrodes

Polarographic and voltammetric determination of genotoxic 4-nitroindane at mercury electrodes

Thin‐Layer and Wall‐Jet Arrangement of Amperometric Detector with Boron‐Doped Diamond Electrode: Comparison of Amperometric Determination of Aminobiphenyls in HPLC‐ED

A glassy carbon electrode modified with a multiwalled carbon nanotube@reduced graphene oxide nanoribbon core-shell structure for electrochemical sensing of p-dihydroxybenzene

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