An Electrochemical Approach for the Cucurbit[7]uril/Carbendazim Supramolecular Inclusion Complex. Application to Carbendazim Determination in Apples

Pozo, María del; Alonso, Marina; Hernández, L.; Quintana, Carmen

doi:10.1002/elan.201000442

Cited by 13 publications

(1 citation statement)

References 31 publications

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“…However, improper pesticide application, including incorrect selection, overuse of pesticides on agricultural commodities, or harvesting crops before the residue has washed off, can lead to a high amount of residue in foods [1]. These pesticides and their final degradation products can remain in grain [2], oil [3], water [4], fruit [5,6], and other related products [7], and can be further constantly enriched through the food chain, causing very serious human health and safety issues [8][9][10][11]. Therefore, it is very important to develop a new approach for the rapid detection of pesticide residue with high selectivity, high sensitivity and convenience.…”

Section: Introductionmentioning

confidence: 99%

A novel device based on a fluorescent cross-responsive sensor array for detecting pesticide residue

Huang

Hou

Lei

et al. 2016

Meas. Sci. Technol.

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In this paper, a novel, simple, rapid, and low-cost detection device for pesticide residue was constructed. A sensor array based on a cross-responsive mechanism was designed. The data collection and processing system was used to detect fluorescent signal of the sensor arrays, and to extract unique patterns of the tested pesticide residue. Four selected pesticides, carbendazim, diazine, fenvalerate, and pentachloronitrobenzene, were detected by the proposed device. Unsupervised pattern recognition methods, hierarchical cluster analysis and principal component analysis, were used to analyze the data. The results showed that the methods could 100% discriminate the four pesticide residues. According to the standard regression linear curve of the fluorescence intensity and the concentration of pesticide, the quantitative value of the pesticide was detected, and the device obtained responses at concentrations below 8 ppb, and it has a good linear relationship in the range of 0.01-1 ppm. According to the results, the proposed detection device showed excellent selectivity and discrimination ability for the pesticide residues. However, our preliminary study demonstrated that the proposed detection device has excellent potential application for the safety inspection of food.

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Section: Introductionmentioning

confidence: 99%

A novel device based on a fluorescent cross-responsive sensor array for detecting pesticide residue

Huang

Hou

Lei

et al. 2016

Meas. Sci. Technol.

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Determination of Carbendazim by Adsorptive Stripping Differential Pulse Voltammetry Employing Glassy Carbon Paste Electrode Modified with Graphene and Amberlite XAD 2 Resin

2015

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Graphene nanosheets (GNS) and amberlite XAD‐2 (XAD2) modified glassy carbon paste electrode (GNS‐XAD2‐GCPE) were fabricated for voltammetric determination of Carbendazim (MBC). GNS was synthesized by Hummer’s method and characterized by SEM, EDAX, and XRD techniques. After optimizing the analytical conditions in 0.4 M citrate buffer (pH 4.0), the peak current was found to be linear in the range of 8.36×10−9 to 4.13×10−6 M (r=0.9986) with detection limit of 3.14×10−9 M (S/N=3) by AdSDPV. The method was validated for the determination of MBC in soil, fruit, blood serum, urine, waste and ground water samples with satisfactory recoveries.

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Sensitive Approach for Voltammetric Determination of Carbendazim Based on the Use of an Anionic Surfactant

et al. 2016

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This report describes by the first time the use of a commercial screen‐printed carbon electrode modified with multi‐walled carbon nanotubes for voltammetric determination of the fungicide carbendazim in the presence of an anionic surfactant. The oxidation of the pesticide showed two anodic and two catodic peaks over a quasi‐reversible system. The quantitative studies were performed using square‐wave voltammetry technique at anodic direction, in that an oxidation peak was observed at +0.98 V vs. Ag/AgCl. Buffer, pH and voltammetric parameters were investigated and optimized. The use of the anionic surfactant sodium dodecyl sulphate provided a significative improvement on analytical sensitivity and its influence also was evaluated. The best conditions for analysis were achieved using a medium of 0.04 mol L−1 Britton‐Robinson buffer at pH 4.00 containing 6.04×10−4 mol L−1 of surfactant. A calibration curve with good linearity (R=0.999) was obtained and the limit of detection achieved was 1.40×10−8 mol L−1 (2.7 ppb). Lastly, the developed method was successfully applied for determination of carbendazim in a spiked orange juice sample and a recovery of 101.7 % was obtained. The results were compared with HPLC technique with good agreement. Based on the data presented, the proposed method shows great promise to be applied in routine analysis of carbendazim in food samples and the approach based on the anionic surfactant effect can be an improvement for other applications.

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An Electrochemical Approach for the Cucurbit[7]uril/Carbendazim Supramolecular Inclusion Complex. Application to Carbendazim Determination in Apples

Cited by 13 publications

References 31 publications

A novel device based on a fluorescent cross-responsive sensor array for detecting pesticide residue

A novel device based on a fluorescent cross-responsive sensor array for detecting pesticide residue

Determination of Carbendazim by Adsorptive Stripping Differential Pulse Voltammetry Employing Glassy Carbon Paste Electrode Modified with Graphene and Amberlite XAD 2 Resin

Sensitive Approach for Voltammetric Determination of Carbendazim Based on the Use of an Anionic Surfactant

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