The rapid quantitative analysis of three pesticides in cherry tomatoes and red grape samples with Tchebichef image moments

Lu, Shao Hua; Li, Sha Sha; Yin, Bo; Mi, Jia

doi:10.1016/j.foodchem.2019.03.118

Cited by 14 publications

(5 citation statements)

References 38 publications

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“…The recovery ranged from 99.12 to 108.00% for guava and from 96.67 to 107.81% for apple, in agreement with the recovery values (80–120%) established by the ICH method validation guideline . These results are similar to or better than those reported in previous studies that achieved recoveries between 70 and 110% using well-established methods to detect pesticides in fruits and vegetables. ,− …”

Section: Resultssupporting

confidence: 89%

Combining LAESI Imaging and Tissue Spray Ionization Mass Spectrometry To Unveil Pesticides Contaminants in Fruits

Lima,

Pereira,

Maciel

et al. 2023

J. Am. Soc. Mass Spectrom.

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There is an increasing need for developing a strategy to analyze the penetration of pesticides in cultures during postharvest control with minimal or no sample preparation. This study explores the combined use of laser ablation electrospray ionization mass spectrometry imaging (LAESI imaging) and tissue spray ionization mass spectrometry (TSI-MS) to investigate the penetration of thiabendazole (TBZ) in fruits, simulating a postharvest procedure. Slices of guava and apple were prepared, and an infrared laser beam was used, resulting in the ablation of TBZ directly ionized by electrospray and analyzed by mass spectrometry. The experiments were conducted for 5 days of fruit storage after TBZ administration to simulate a postharvest treatment. During postharvest treatment, TBZ is applied directly to the fruit peel after harvesting. Consequently, TBZ residues may remain on the peel if the consumer does not wash the fruit properly before its consumption. To evaluate the effectiveness of household washing procedures, TSI-MS was employed as a rapid and straightforward technique to monitor the remaining amount of TBZ in guava and apple peels following fruit washing. This study highlights the advantages of LAESI imaging for evaluating TBZ penetration in fruits. Moreover, the powerful capabilities of TSI-MS are demonstrated in monitoring and estimating TBZ residues after pesticide application, enabling the comprehensive unveiling of pesticide contaminants in fruits.

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Section: Resultssupporting

confidence: 89%

Combining LAESI Imaging and Tissue Spray Ionization Mass Spectrometry To Unveil Pesticides Contaminants in Fruits

Lima,

Pereira,

Maciel

et al. 2023

J. Am. Soc. Mass Spectrom.

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“…Bro et al described the algorithm in detail in the original literature [ 24 ]. The N-PLS method has successfully been used for multi-way data modeling in many areas, such as environmental [ 25 ], food science [ 26 ], and so on. The determination of optimum latent variables ( LV s) is an important step for the establishment of a stable N-PLS model with high accuracy.…”

Section: Discussionmentioning

confidence: 99%

New Constructed EEM Spectra Combined with N-PLS Analysis Approach as an Effective Way to Determine Multiple Target Compounds in Complex Samples

Zhu

Feng

et al. 2022

Molecules

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Excitation–emission matrix (EEM) fluorescence spectroscopy has been applied to many fields. In this study, a simple method was proposed to obtain the new constructed three-dimensional (3D) EEM spectra based on the original EEM spectra. Then, the application of the N-PLS method to the new constructed 3D EEM spectra was proposed to quantify target compounds in two complex data sets. The quantitative models were established on external sample sets and validated using statistical parameters. For validation purposes, the obtained results were compared with those obtained by applying the N-PLS method to the original EEM spectra and applying the PLS method to the extracted maximum spectra in the concatenated mode. The comparison of the results demonstrated that, given the advantages of less useless information and a high calculating speed of the new constructed 3D EEM spectra, N-PLS on the new constructed 3D EEM spectra obtained better quantitative analysis results with a correlation coefficient of prediction above 0.9906 and recovery values in the range of 85.6–95.6%. Therefore, one can conclude that the N-PLS method combined with the new constructed 3D EEM spectra is expected to be broadened as an alternative strategy for the simultaneous determination of multiple target compounds.

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“…Based on HPLC with DAD, Lu et al [182] simultaneously determined TBZ, thiophanatemethyl, and 2-amino-benzimidazole in cherry tomato and red grape samples. In the proposed method, the authors used Tchebichef image moments (TM) models for the quantitative analysis.…”

Section: High Performance Liquid Chromatographymentioning

confidence: 99%

Review of Characteristics and Analytical Methods for Determination of Thiabendazole

et al. 2023

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Thiabendazole (TBZ) is a fungicide and anthelmintic drug commonly found in food products. Due to its toxicity and potential carcinogenicity, its determination in various samples is important for public health. Different analytical methods can be used to determine the presence and concentration of TBZ in samples. Liquid chromatography (LC) and its subtypes, high-performance liquid chromatography (HPLC) and ultra-high-performance liquid chromatography (UHPLC), are the most commonly used methods for TBZ determination representing 19%, 18%, and 18% of the described methods, respectively. Surface-enhanced Raman spectroscopy (SERS) and fluorimetry are two more methods widely used for TBZ determination, representing 13% and 12% of the described methods, respectively. In this review, a number of methods for TBZ determination are described, but due to their limitations, there is a high potential for the further improvement and development of each method in order to obtain a simple, precise, and accurate method that can be used for routine analysis.

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The rapid quantitative analysis of three pesticides in cherry tomatoes and red grape samples with Tchebichef image moments

Cited by 14 publications

References 38 publications

Combining LAESI Imaging and Tissue Spray Ionization Mass Spectrometry To Unveil Pesticides Contaminants in Fruits

Combining LAESI Imaging and Tissue Spray Ionization Mass Spectrometry To Unveil Pesticides Contaminants in Fruits

New Constructed EEM Spectra Combined with N-PLS Analysis Approach as an Effective Way to Determine Multiple Target Compounds in Complex Samples

Review of Characteristics and Analytical Methods for Determination of Thiabendazole

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