Distribution and migration study of pesticides between peel and pulp in grape by online gel permeation chromatography–gas chromatography/mass spectrometry

Xu, Xia; Yu, Sha; Li, Rui; Fan, Jun; Chen, Shi‐Hua; Shen, Haitao; Han, Jiaguang; Huang, Baifen; Ren, Yiping

doi:10.1016/j.foodchem.2012.04.052

Cited by 49 publications

(18 citation statements)

References 25 publications

(29 reference statements)

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“…This kind of pesticides included pyrethroid pesticides, pp-DDE, chlorfenapyr, pyridaben, chlorpyrifos with weak solubility in water (or strong lipid solubility). They only stay in peel and are hard to migrate to pulp during the whole planting and storing processes (Xu et al, 2012). The same author found that the pesticides with average distribution ratios more than 90% in peels of grape were those with the solubility less than 2 mg L -1 .…”

Section: Resultsmentioning

confidence: 98%

“…The same author found that the pesticides with average distribution ratios more than 90% in peels of grape were those with the solubility less than 2 mg L -1 . The factors affecting the pesticide distribution and migration between peel and pulp may include: (1) the pesticide preventing property of the grape peel; (2) physico-chemical properties of the pesticides (such as the polarity, solubility and special groups helping for pass though the peel); (3) contacting time after pesticide sprayed; (4) concentration in the peel; (5) degeneration by sunlight; (6) rinsing by rain, and so on (Xu et al, 2012). Table 1 shows that the initial concentration level of fenpropathrin in squash fruit was obviously lower than in the garden rocket plants.…”

Section: Resultsmentioning

confidence: 99%

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Dissipation of fenpropathrin residues in squash fruits intercropped with garden rocket

Romeh¹,

Hendawi²

2014

Afr. J. Agric. Res.

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The dissipation and residue of fenpropathrin in squash fruits intercropped with garden rocket under field conditions were studied. Samples were collected periodically on the sampling days after applications. The residue data revealed the half-life values of fenpropathrin in Squash fruit and garden rocket were found to be 1.78 and 1.85 days, respectively. The residues of fenpropathrin were more greatly concentrated in the squash fruit shell than that squash fruit pulp. The initial concentration level of fenpropathrin in squash fruit was lower than in the garden rocket plants. Fenpropathrin levels in squash fruit or garden rocket below maximum residue level (1.0 mg/kg) were detected 3 days after application and no residues were detected on the 10th day.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Dissipation of fenpropathrin residues in squash fruits intercropped with garden rocket

Romeh¹,

Hendawi²

2014

Afr. J. Agric. Res.

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“…In addition, the European Union has set its maximum allowable concentration at 0.1 μg L −1 in drinking water . Many pesticide analysis techniques have been developed such as capillary electrophoresis , chromatographic techniques and chromatography coupled to mass spectroscopy. Although they are very sensitive and reliable but have strong drawbacks such as complex and long processing samples and can only be performed by highly qualified personnel.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Modified Carbon Paste Electrode as Voltrammetric Sensor for Isoproturon Trace Analysis in Water

et al. 2020

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A new electrochemical sensor based on nanostructured carbon paste electrodes (CPEs) is developed for the sensitive detection of Isoproturon in water. The CPEs were nanostructured by incorporation of carbon nanotubes (NTCs) and synthetized copper oxide nanoparticles (CuO). They were characterized using the X‐ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM) and voltammetric methods. Electrochemical experiments showed that the adsorption of Isoproturon on to (GC‐NTC‐CuO)‐CPE, associated with nanomaterials (NTCs and CuO), provided remarkable analytical performances of the sensor such as a large quantification range from 1 to 200 μg L−1 with a detection limit of 0.1 μg L−1 of Isoproturon and no interferences of some another pesticides tested (specificity of ISO adsorption in acidified water). The tests carried out on real samples of water are conclusive. The analytical performances of the sensor showed that it is suitable for the specific determination of pesticide traces in water.

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“…SEC has the capability of removing interferences such as pigment, polymer, and alkaloid from matrix . An online SEC–GC–MS/MS, in which SEC is added to GC–MS/MS online, is a fast, efficient, and labor‐saving system for screening residual pesticides in foods in comparison with the offline operation, which consumes more time and solvent .…”

Section: Introductionmentioning

confidence: 99%

Analysis of pesticide residues in tobacco with online size exclusion chromatography with gas chromatography and tandem mass spectrometry

et al. 2016

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An ultrasensitive method for the simultaneous analysis of pesticides residues in tobacco was developed with online size exclusion chromatography with gas chromatography and tandem mass spectrometry. Tobacco samples were extracted with the solvent mixture of cyclohexane and acetone (7:3, v/v) and centrifuged. Then, the supernatant liquors were injected directly into the online size exclusion chromatography with gas chromatography and tandem mass spectrometry without any other purification procedures after being filtered with a 0.22 μm organic phase filter. The matrix interferences were effectively removed and recoveries of most pesticides were in the range of 72-121%. Especially, for chlorothalonil, the analysis efficiency of this method was much more favorable than that of the general method, in which dispersive solid-phase extraction was used as an additional purified procedure. In addition, the limits of quantitation of this method were from 1 to 50 μg/kg. Therefore, a rapid, cost-effective, labor-saving method was proposed in the present work, which was suitable for the analysis of 41 pesticide residues in tobacco.

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Distribution and migration study of pesticides between peel and pulp in grape by online gel permeation chromatography–gas chromatography/mass spectrometry

Cited by 49 publications

References 25 publications

Dissipation of fenpropathrin residues in squash fruits intercropped with garden rocket

Dissipation of fenpropathrin residues in squash fruits intercropped with garden rocket

Nanostructured Modified Carbon Paste Electrode as Voltrammetric Sensor for Isoproturon Trace Analysis in Water

Analysis of pesticide residues in tobacco with online size exclusion chromatography with gas chromatography and tandem mass spectrometry

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