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Emerging Analytical Methods for Contaminants in Food and Environment

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Analytical Chemistry".

Deadline for manuscript submissions: 31 October 2026 | Viewed by 503

Special Issue Editor


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Guest Editor
Departamento de Ciencias Básicas, Facultad de Ingeniería, Universidad EAN, Bogotá, Colombia
Interests: multi-residue analysis; contaminants; environmental and food analysis; sample preparation; chromatographic techniques, mass spectrometry; analytical methods
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Special Issue Information

Dear Colleagues,

The presence of chemical contaminants in food and environmental matrices continues to represent a major challenge for public health, ecosystem integrity, and regulatory compliance worldwide. A wide range of pollutants, including pesticide residues, veterinary drugs, mycotoxins, heavy metals, and other persistent organic pollutants, as well as emerging contaminants, can enter the food chain and natural environments through agricultural practices, industrial activities, and diffuse pollution sources. Reliable identification and quantification of these substances at ultra-trace levels require innovative, highly sensitive, and selective analytical approaches capable of handling complex matrices. This Special Issue aims to gather cutting-edge research on the advancements in analytical methods for the determination of contaminants in food and environmental samples. Contributions addressing novel sample preparation strategies, chromatographic and spectrometric techniques, high-resolution mass spectrometry, method development and validation, and large-scale monitoring studies are particularly welcome. By highlighting emerging trends, this Special Issue seeks to provide a comprehensive overview of current analytical capabilities and future directions in contaminant assessment.

Prof. Dr. Miguel Ángel González-Curbelo
Guest Editor

Manuscript Submission Information

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Keywords

  • food contaminants
  • sample preparation
  • multi-residue analysis
  • chromatography
  • mass spectrometry
  • residue monitoring
 

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Published Papers (1 paper)

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Research

20 pages, 1787 KB  
Article
High-Throughput Determination of 210 Pesticide Residues in Gherkins by QuEChERS Coupled with LC-MS/MS and GC-MS/MS
by Mehmet Keklik, Eylem Odabas, Tuba Buyuksirit-Bedir, Ozgur Golge, Miguel Ángel González-Curbelo and Bulent Kabak
Molecules 2026, 31(8), 1248; https://doi.org/10.3390/molecules31081248 - 9 Apr 2026
Viewed by 317
Abstract
Pesticide residues represent an important group of chemical contaminants in agricultural commodities and require reliable analytical strategies for accurate monitoring. In this study, a high-throughput analytical workflow was applied for the determination of 210 pesticide residues in gherkins. Sample preparation was performed using [...] Read more.
Pesticide residues represent an important group of chemical contaminants in agricultural commodities and require reliable analytical strategies for accurate monitoring. In this study, a high-throughput analytical workflow was applied for the determination of 210 pesticide residues in gherkins. Sample preparation was performed using the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method, including extraction followed by dispersive solid-phase extraction clean-up. Residue determination was carried out using liquid chromatography–tandem mass spectrometry (LC-MS/MS) and gas chromatography–tandem mass spectrometry (GC-MS/MS). The analytical methods were comprehensively validated in the gherkin matrix in accordance with the SANTE 11312/2021 v2 guidelines. Limits of quantification were ≤0.01 mg kg−1 for all compounds. Recovery values ranged from 75.7% to 113.7%, while precision values remained below 20%, demonstrating satisfactory method accuracy and precision. Expanded measurement uncertainty values ranged between 7.6% and 41.3%, confirming the robustness of the validated analytical workflow. The validated methods were subsequently applied to a large-scale monitoring dataset comprising 905 gherkin samples collected from five major production regions in Türkiye. Pesticide residues were detected in 67.6% of the analysed samples, and 37 different compounds were identified. The most frequently detected pesticides were flonicamid (36.2%) and propamocarb (27.5%). Multi-residue contamination was frequently observed, reflecting complex pesticide application patterns in gherkin cultivation systems. Although chronic exposure estimates remained well below toxicological thresholds for both adults and children, certain exposure scenarios indicated that acute exposure for children may warrant further attention. Full article
(This article belongs to the Special Issue Emerging Analytical Methods for Contaminants in Food and Environment)
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