Enantioseparation and determination of triazole fungicides in vegetables and fruits by aqueous two-phase extraction coupled with online heart-cutting two-dimensional liquid chromatography

Zeng, Huiyun; Xie, Xiujuan; Huang, Yingxiang; Chen, Jieming; Liu, Yingtao; Zhang, Yi; Mai, Xiaoman; Deng, Jiushuai; Fan, Huajun; Zhang, Wei

doi:10.1016/j.foodchem.2019.125265

Cited by 34 publications

(11 citation statements)

References 36 publications

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“…The combination of aqueous two‐phase extraction (ATPE) (ethanol/K 2 HPO 4 as biphasic extractant) with online heart‐cutting two‐dimensional LC (2D‐LC) was utilized to determine triazole fungicides (Zeng et al, 2019). Eight triazole fungicides and their enantiomers were determined, obtaining good linearity over the concentrations between 0.1218 and 30.06 μg/ml with R 2 ≥ 0.9984, LODs of 0.03113–0.3525 μg/ml, and recoveries within 71.57%–107.8%.…”

Section: Chromatographic and Mass Spectrometric Techniquesmentioning

confidence: 99%

Analytical methods to analyze pesticides and herbicides

Begum

Xue

2020

Water Environment Research

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This paper reviews studies published in 2019, in the area of analytical techniques for determination of pesticides and herbicides. It should be noted that some of the reports summarized in this review are not directly related to but could potentially be used for water environment studies. Based on different methods, the literatures are organized into six sections, namely extraction methods, electrochemical techniques, spectrophotometric techniques, chemiluminescence and fluorescence methods, chromatographic and mass spectrometric techniques, and biochemical assays.

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Section: Chromatographic and Mass Spectrometric Techniquesmentioning

confidence: 99%

Analytical methods to analyze pesticides and herbicides

Begum

Xue

2020

Water Environment Research

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“…Most of them contain chiral carbon atoms and occur as enantiomers 3 . Although the enantiomers of chiral triazole fungicides have the same physical and chemical properties, they exhibit different residual behaviors, for example, degradation, metabolism, and transformation 4 . The S ‐enantiomer is more toxicologically active than the R ‐enantiomer 5…”

Section: Introductionmentioning

confidence: 99%

Switchable deep eutectic solvent‐based homogenous liquid–liquid microextraction combined with high‐performance liquid chromatography–diode‐array detection for the determination of the chiral fungicide mefentrifluconazole in water, fruit juice, and fermented liquor

et al. 2022

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A switchable deep eutectic solvent‐based homogeneous liquid–liquid microextraction (SDES‐HLLME) technique was developed and combined with high‐performance liquid chromatography–diode‐array detection for the determination of the chiral fungicide mefentrifluconazole. A (green) SDES was synthesized from 4‐methoxyphenyl and 3‐amino‐1‐propanol and used as an extraction solvent (thus avoiding the use of toxic extraction solvents). To improve the efficiency of the extraction process, a hydrophobic extraction solvent was subsequently generated in situ by adjusting the pH. The detection process is linear in the range of 0.01 to 1 μg ml−1. The limit of detection and limit of quantification were determined to be 0.003 and 0.01 μg ml−1, respectively. Recovery rates of 79.2% to 104.6% were acquired with relative standard deviations of 0.6% to 2.5%. The method is fast, simple, and environmentally friendly. Moreover, it was successfully used to enantioselectively determine the concentrations of mefentrifluconazole residues in water, fruit juice, and fermented liquor samples.

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“…The advancement of sample-preparation methods has mainly promoted their simplification, miniaturization (reduction in the amounts of sample and extraction solvent), and environmental friendliness (use of an alternative extraction solvent) [ 4 ]. Recently, miniaturized techniques have been advanced to enrich triazoles in various matrices, such as ultrasonic-assisted dispersive solid-phase extraction (UA-DSPE) [ 16 ], magnetic solid-phase extraction (MSPE) [ 6 ], homogeneous liquid–liquid extraction based on salting out (SHLLE) [ 14 ], vortex-assisted ionic liquid dispersive liquid–liquid microextraction (VA-IL-DLLME) [ 9 ], aqueous two-phase extraction (ATPE) [ 17 ], and microsolid-phase extraction [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

An In Situ Formation of Ionic Liquid for Enrichment of Triazole Fungicides in Food Applications Followed by HPLC Determination

et al. 2022

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An in situ formation of ionic liquid was used for preconcentration of four triazole fungicides in food samples. The microextraction method was used for the first time in the literature for preconcentration of triazole fungicides. In the developed method, tributylhexadecylphosphonium bromide ([P44412]Br) and potassium hexafluorophosphate (KPF6) were used for the formation of hydrophobic ionic liquid. After centrifugation, the fine microdroplets were produced in one step, providing the extraction step in a quick and environmentally friendly manner. The functional group of the hydrophobic ionic liquid was investigated using FT-IR. Various extraction parameters were studied and optimized. In the extraction method, 0.01 g of [P44412]Br and 0.01 g of KPF6, centrifugation at 4500 rpm for 10 min were used. The optimized technique provided a good linear range (90–1000 g L−1) and high extraction recovery, with a low limit of detection (30–50 g L−1). Methods for the proposed in situ formation of ionic liquid were successfully applied to honey, fruit juice, and egg matrices. The recoveries were obtained in a satisfactory range of 62–112%. The results confirmed the suitability of the proposed microextraction method for selective extraction and quantification of triazole fungicides.

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Enantioseparation and determination of triazole fungicides in vegetables and fruits by aqueous two-phase extraction coupled with online heart-cutting two-dimensional liquid chromatography

Cited by 34 publications

References 36 publications

Analytical methods to analyze pesticides and herbicides

Analytical methods to analyze pesticides and herbicides

Switchable deep eutectic solvent‐based homogenous liquid–liquid microextraction combined with high‐performance liquid chromatography–diode‐array detection for the determination of the chiral fungicide mefentrifluconazole in water, fruit juice, and fermented liquor

An In Situ Formation of Ionic Liquid for Enrichment of Triazole Fungicides in Food Applications Followed by HPLC Determination

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