Ant nest-like hierarchical porous imprinted resin-dispersive solid-phase extraction for selective extraction and determination of polychlorinated biphenyls in milk

Lu, Yanke; Shen, Qi; Zhai, Chengcheng; Yan, Hongyuan; Shen, Shigang

doi:10.1016/j.foodchem.2022.135076

Cited by 11 publications

(3 citation statements)

References 34 publications

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“…Among these, the cream exhibited higher levels of NDL-PCBs than ice cream. Lu et al ( 79 ) used d-SPE with GC–MS/MS to determine PCBs in milk and obtained LODs were < 0.6 pg./g; the recovery range was 82.8 to 106%. PCBs are present in food at extremely low levels and the diversity and complexity of food matrices make the determination of PCBs in food difficult.…”

Section: Introductionmentioning

confidence: 99%

A review on recent advances in mass spectrometry analysis of harmful contaminants in food

et al. 2023

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Food safety is a widespread global concern with the emergence of foodborne diseases. Thus, establishing accurate and sensitive detection methods of harmful contaminants in different food matrices is essential to address and prevent the associated health risks. Among various analytical tools, mass spectrometry (MS) can quantify multiple impurities simultaneously due to high resolution and accuracy and can achieve non-target profiling of unknown pollutants in food. Therefore, MS has been widely used for determination of hazardous contaminants [e.g., mycotoxin, pesticide and veterinary drug residues, polychlorinated biphenyls (PCBs), dioxins, acrylamide, perfluorinated compounds (PFCs) and p-Phenylenediamine compounds (PPDs) in food samples]. This work summarizes MS applications in detecting harmful contaminants in food matrices, discusses advantages of MS for food safety study, and provides a perspective on future directions of MS development in food research. With the persistent occurrence of novel contaminants, MS will play a more and more critical role in food analysis.

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Section: Introductionmentioning

confidence: 99%

A review on recent advances in mass spectrometry analysis of harmful contaminants in food

et al. 2023

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“…Plenty of techniques have been applied to extract and purify PCBs from sample matrices, such as Soxhlet extraction, , liquid–liquid extraction, , solid-phase extraction, , and accelerated solvent extraction. , However, these techniques are limited by time and high cost and usually require large amounts of organic solvents. The development of an effective sample preparation procedure is crucial for the removal of lipids and other interfering substances.…”

Section: Introductionmentioning

confidence: 99%

“…7,8 On account of their strong biological and environmental toxicity, the precise determination of PCBs in real samples is essential for ecological protection and life safety. 9−11 Plenty of techniques have been applied to extract and purify PCBs from sample matrices, such as Soxhlet extraction, 12,13 liquid−liquid extraction, 14,15 solid-phase extraction, 16,17 and accelerated solvent extraction. 18,19 However, these techniques are limited by time and high cost and usually require large amounts of organic solvents.…”

Section: ■ Introductionmentioning

confidence: 99%

Carboxylated Covalent Organic Frameworks with Size Adjustment for the Identification of Polychlorinated Biphenyls

Yu,

Tong,

et al. 2023

ACS EST Water

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Polychlorinated biphenyls (PCBs) are persistent organic pollutants that pose a severe threat to the environment and organisms, even at trace levels. In this study, we used carboxylated covalent organic frameworks (COFs) as molecular probes for the extraction of trace PCBs using solid-phase microextraction (SPME). Benefiting from the flexible and adjustable features of the COFs, a series of carboxylated COFs with different pore sizes were tailored and fabricated as SPME fibers. The carboxylated COFs presented significant extraction sensitivity and specificity compared to the pristine COFs, which were attributed to the interplay of twisted nanochannels and formed secondary nanopores, as well as the intermolecular hydrogen bonding between COFs and PCBs. The limits of detection (LODs) were calculated to be 0.02−0.2 ng L −1 , which were much lower than the maximum content of PCBs in drinking water recommended by the United States Environmental Protection Agency (USEPA) (0.5 μg L −1 ). Furthermore, SPME probes were successfully performed for PCB detection in real water samples with satisfactory results. This study demonstrated the potential of carboxylated COF-based SPME fibers for the selective extraction of PCBs and could contribute to the development of new and effective SPME coatings for the efficient detection of pollutants in environmental samples efficiently.

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Recent trends in microextraction methodology for food analysis

Salehpour,

Nojavan,

Alahmad

et al. 2024

Green Chemistry in Food Analysis

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Ant nest-like hierarchical porous imprinted resin-dispersive solid-phase extraction for selective extraction and determination of polychlorinated biphenyls in milk

Cited by 11 publications

References 34 publications

A review on recent advances in mass spectrometry analysis of harmful contaminants in food

A review on recent advances in mass spectrometry analysis of harmful contaminants in food

Carboxylated Covalent Organic Frameworks with Size Adjustment for the Identification of Polychlorinated Biphenyls

Recent trends in microextraction methodology for food analysis

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