Pesticide residues in fresh vegetables imported into the United Arab Emirates

Osaili, Tareq M.; Sallagi, Maryam S. Al; Dhanasekaran, Dinesh Kumar; Odeh, Wael A.M. Bani; Ali, Hajer.J. Al; Ali, Ahmed A.S.A. Al; Radwan, Hadia; Obaid, Reyad S.; Holley, Richard A.

doi:10.1016/j.foodcont.2021.108663

Cited by 23 publications

(13 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Two hundred and sixty-two pesticide reference standards, with purity ranging from 97 to 99%, were obtained from Sigma-Aldrich Chemie GmbH. The preparation method used for pesticide reference standards has been described previously in detail ( Osaili et al., 2022 ).…”

Section: Methodsmentioning

confidence: 99%

“…The Emirate of Dubai has been a center for regional and international trade since the early 20th century ( Dubai Statistics Centre, 2020 ). The UAE is one of the largest net importers of fresh fruits and vegetables in the Middle East/North Africa (MENA) region ( Syed et al., 2014 ; Osaili et al., 2022 ). Fruit samples were collected every day from March 2018 until December 2020 at the Dubai ports.…”

Section: Methodsmentioning

confidence: 99%

“…LC-MS/MS analysis was carried out as per the protocol previously described ( Osaili et al., 2022 ). An Agilent 6460 Triple Quadrupole Mass Spectrometer (Agilent, CA, USA) equipped with an Agilent Eclipse XDB-C18 column (2.1 mm × 150 mm × 3 μm) with autosampler, a binary pump and degasser, and Electrospray Ionization (ESI) source.…”

Section: Methodsmentioning

confidence: 99%

“…A gas chromatograph (Agilent, CA, USA, 7890B) equipped with a triple-quadrupole tandem mass spectrometer (7010B; Agilent, MS/MS), capillary column (HP-5MS, 30 m × 0.25 mm × 0.25 μm) and electron impact (EI) ionization source (GC-MS/MS) was used to measure the concentrations of pesticides ( Osaili et al., 2022 ). In brief, 3.0 μL of the sample was injected in solvent vent injection mode, and a silica liner with 4 mm diameter.…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Pesticide residues in fresh fruits imported into the United Arab Emirates

Osaili

Sallagi²,

Dhanasekaran³

et al. 2022

Heliyon

Self Cite

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Pesticide residues in fresh fruits imported into the United Arab Emirates

Osaili

Sallagi²,

Dhanasekaran³

et al. 2022

Heliyon

Self Cite

View full text Add to dashboard Cite

“…Many frequently used analytical approaches for omethoate have been reported, such as thin-layer chromatography (TLC) [ 14 ], high-performance liquid chromatography (HPLC) [ 15 ], gas chromatography (GC) [ 16 ], gas chromatography coupled with mass spectrometry (GC/MS) [ 17 ], and liquid chromatography coupled with mass spectrometry (LC-MS/MS) [ 18 ]. Although the above-mentioned mass spectrometry-related analytical methods are accurate, they have the disadvantages of being time consuming, high inspection and maintenance costs, and requiring professionals for operation [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

A Smartphone Colorimetric Sensor Based on Pt@Au Nanozyme for Visual and Quantitative Detection of Omethoate

Zhang

Zhou

Zhang

et al. 2022

Foods

View full text Add to dashboard Cite

A smartphone colorimetric sensor based on the Pt@Au nanozyme was successfully developed for the visual and quantitative detection of omethoate in fruit and vegetables. The anti-omethoate antibody was conjugated on the surface of the Pt@Au nanozyme as a catalytic functional signal probe, and coating antigen conjugated on the surface of magnetic polystyrene microspheres (MPMs) was used as a separation capture probe. In the sensing system, when the catalytic functional signal probe was combined with a separation capture probe containing no omethoate, the visible blue color appeared with the addition of tetramethylbenzidine (TMB) chromogenic solution, and the maximum B value of the sensing system was obtained via the smartphone. With increasing concentrations of omethoate, the visualization of the sensing system decreased, and the B-value obtained via the smartphone dropped. Under optimal detection conditions, the omethoate could be detected in a linear range of 0.5–50 μg/L (R2 = 0.9965), with a detection limit of 0.01 μg/L. The accuracy and reliability of the detection results of this colorimetric sensor were successfully confirmed by enzyme linked immunosorbent assay (ELISA) and gas chromatography. This colorimetric sensor provides a technical reference and potential strategy for the immunoassay of hazard factors in resource-scarce laboratories.

show abstract