Electrochemical Sensor Based on Beeswax and Carbon Black Thin Biofilms for Determination of Paraquat in Apis mellifera Honey

Souza, Daniel Cardoso de; Orzari, Luiz Otávio; Oliveira, Paulo Roberto de; Kalinke, Cristiane; Bonacin, Juliano Alves; Malaspina, Osmar; Nocelli, Roberta Cornélio Ferreira; Janegitz, Bruno C.

doi:10.1007/s12161-020-01900-6

Cited by 18 publications

(9 citation statements)

References 59 publications

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“…Milk samples were salted with ammonium sulfate and centrifuged at 10,000 rpm for 10 min to obtain the supernatant [35]. Honey samples were diluted ten times with PBS at pH 7 [36,37]. The diluted honey samples were centrifuged at 10,000 rpm for 10 min, and the supernatant was collected and set aside.…”

Section: Preparation Of Real Samplesmentioning

confidence: 99%

Hematite nanoparticle decorated MIL-100 for the highly selective and sensitive electrochemical detection of trace-level paraquat in milk and honey

Zhou

Tang

Qin

et al. 2023

Sensors and Actuators B: Chemical

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Section: Preparation Of Real Samplesmentioning

confidence: 99%

Hematite nanoparticle decorated MIL-100 for the highly selective and sensitive electrochemical detection of trace-level paraquat in milk and honey

Zhou

Tang

Qin

et al. 2023

Sensors and Actuators B: Chemical

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“…Since paraquat is considered a non-polluting herbicide, it is often used indiscriminately, increasing its toxicological potential and the risk posed to human health. Consequently, many studies have demonstrated the detection of paraquat using different electrodes, such as modified glassy carbon electrodes [21][22][23][24][25][26], hanging mercury drop electrodes [27], and screen-printed electrodes [28,29]. These reported devices, however, suffer from high material and manufacturing costs, have poor disposability, are not suitable for portable detection, and involve complex electrode modification steps in some cases.…”

Section: Introductionmentioning

confidence: 99%

Silver Inkjet-Printed Electrode on Paper for Electrochemical Sensing of Paraquat

2021

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The use of fully printed electrochemical devices has gained more attention for the monitoring of clinical, food, and environmental analytes due to their low cost, great reproducibility, and versatility characteristics, serving as an important technology for commercial application. Therefore, a paper-based inkjet-printed electrochemical system is proposed as a cost-effective analytical detection tool for paraquat. Chromatographic paper was used as the printing substrate due its sustainable and disposable characteristics, and an inkjet-printing system deposited the conductive silver ink with no further modification on the paper surface, providing a three-electrode system. The printed electrodes were characterized with scanning electron microscopy, cyclic voltammetry, and chronopotentiometry. The proposed sensor exhibited a large surface area, providing a powerful tool for paraquat detection due to its higher analytical signal. For the detection of paraquat, square-wave voltammetry was used, and the results showed a linear response range of 3.0–100 μM and a detection limit of 0.80 µM, along with the high repeatability and disposability of the sensor. The prepared sensors were also sufficiently selective against interference, and high accuracy (recovery range = 96.7–113%) was obtained when applied to samples (water, human serum, and orange juice), showing the promising applicability of fully printed electrodes for electrochemical monitoring.

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“…When the R ct value is low, it shows that there is less resistance, and thus more conductivity is present in the electrode modification used. 29 In this study, three different electrodes are used which are bare GCE, NIP GCE and IIP GCE. An aliquot of 5 ml of potassium ferri/ferro cyanide along with 10 ml of 0.1 M KCl is used as a supporting electrolyte for this EIS study.…”

Section: Study On Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Ion-imprinted chitosan-stabilized biogenic silver nanoparticles for the electrochemical detection of arsenic (iii) in water samples

Agnihotri

Varghese

et al. 2023

New J. Chem.

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Electrochemical Sensor Based on Beeswax and Carbon Black Thin Biofilms for Determination of Paraquat in Apis mellifera Honey

Cited by 18 publications

References 59 publications

Hematite nanoparticle decorated MIL-100 for the highly selective and sensitive electrochemical detection of trace-level paraquat in milk and honey

Hematite nanoparticle decorated MIL-100 for the highly selective and sensitive electrochemical detection of trace-level paraquat in milk and honey

Silver Inkjet-Printed Electrode on Paper for Electrochemical Sensing of Paraquat

Ion-imprinted chitosan-stabilized biogenic silver nanoparticles for the electrochemical detection of arsenic (iii) in water samples

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