Liquid–solid extraction coupled with magnetic solid-phase extraction for determination of pyrethroid residues in vegetable samples by ultra fast liquid chromatography

Jiang, Chunzhu; Sun, Ying; Yu, Xi; Gao, Yan; Zhang, Lei; Wang, Qianqian; Zhang, Hanqi; Song, Daqian

doi:10.1016/j.talanta.2013.04.004

Cited by 45 publications

(11 citation statements)

References 36 publications

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“…The preconcentration of pyrethroids in several samples such as water , fruits and vegetables , tea samples , and honey has also been carried out using magnetic solid‐phase extraction (MSPE), a procedure based on the use of magnetic materials which are good adsorbents of organic molecules . The analytes bind to the magnetic nanoparticles (MNPs) and can be separated from the sample by a magnetic field, while the target compounds are then eluted.…”

Section: Introductionmentioning

confidence: 99%

Magnetic solid‐phase extraction or dispersive liquid–liquid microextraction for pyrethroid determination in environmental samples

Pastor-Belda

Navarro-Jiménez

Garrido

et al. 2018

J of Separation Science

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The determination of 15 pyrethroids in soil and water samples was carried out by gas chromatography with mass spectrometry. Compounds were extracted from the soil samples (4 g) using solid-liquid extraction and then salting-out assisted liquid-liquid extraction. The acetonitrile phase obtained (0.8 mL) was used as a dispersant solvent, to which 75 μL of chloroform was added as an extractant solvent, submitting the mixture to dispersive liquid-liquid microextraction. For the analysis of water samples (40 mL), magnetic solid-phase extraction was performed using nanocomposites of magnetic nanoparticles and multiwalled carbon nanotubes as sorbent material (10 mg). The mixture was shaken for 45 min at room temperature before separation with a magnet and desorption with 3 mL of acetone using ultrasounds for 5 min. The solvent was evaporated and reconstituted with 100 μL acetonitrile before injection. Matrix-matched calibration is recommended for quantification of soil samples, while water samples can be quantified by standards calibration. The limits of detection were in the range of 0.03-0.5 ng/g (soil) and 0.09-0.24 ng/mL (water), depending on the analyte. The analyzed environmental samples did not contain the studied pyrethroids, at least above the corresponding limits of detection.

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Section: Introductionmentioning

confidence: 99%

Magnetic solid‐phase extraction or dispersive liquid–liquid microextraction for pyrethroid determination in environmental samples

Pastor-Belda

Navarro-Jiménez

Garrido

et al. 2018

J of Separation Science

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“…Meanwhile, acetone and acetonitrile have also been reported in the literature as suitable eluents for desorption of analytes from C 18 magnetic sorbents . In view of this, acetone and acetonitrile were also investigated, both containing 2.0% of formic acid, and then compared with 2.0% formic acid content in MeOH.…”

Section: Resultsmentioning

confidence: 99%

Capillary electrophoresis combined in-line with solid-phase extraction using magnetic particles as new adsorbents for the determination of drugs of abuse in human urine

et al. 2016

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A simple approach is presented based on the in-line coupling between magnetic particles-based SPE and CE. Silica-coated iron oxide particles functionalized with C18 were successfully synthesized and used as a reverse-phase sorbent for in-line SPE-CE. Magnets were used to locally immobilize these sorbents inside the capillary. Four drugs of abuse were preconcentrated and determined in urine samples using the developed method with a simple pretreatment procedure based on LLE. Several parameters affecting the preconcentration were evaluated. The obtained results show that this strategy enhanced detection sensitivity in the range of 125-700-fold compared with CE without preconcentration. The developed method provides LODs (S/N = 3) for standard samples in the range of 0.5-20 ng/mL with satisfactory analytical precision, in both intraday and day-to-day experiments (RSDs <20%). The LODs (S/N = 3) reached for urine samples were in the range of 20-50 ng/mL. Relative recoveries greater than 75.9% were obtained. The established method has been applied to the analysis of drugs of abuse in urine samples from drug abusers.

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“…Nowadays, metallic nanomaterials used as SPSs reportedly include Fe3O4, TiO2, Al2O3, ZrO2, MnO, and CeO2, modified with functional coatings [40][41][42][43][44][45][46][47]. Among them, magnetic NPs (MNPs) are particularly useful for extracting and enriching a large volume of target analytes, because they can provide high surface area-to-volume ratio, easy surface modification and strong magnetism [48].…”

Section: Metallic Nanoparticlesmentioning

confidence: 99%

“…Among the metallic Fe3O4, TiO2, Al2O3, ZrO2, MnO and CeO2 nanomaterials modified with functional coatings as SPSs [40][41][42][43][44][45][46][47], TiO2 nanomaterials are also commonly used. As a new TiO2 nanomaterial, TiO2 nanotubes (NTs) have often been used as the photo catalyst for photo degradation.…”

Section: Other Metallic Nanoparticlesmentioning

confidence: 99%

Recent advances in solid-phase sorbents for sample preparation prior to chromatographic analysis

Wen

Chen

et al. 2014

TrAC Trends in Analytical Chemistry

335

123

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A B S T R A C TSample preparation is a crucial bottleneck in the whole analytical process. Solid-phase sorbents (SPSs) have aroused increasing interest in research on sample preparation, as they have key roles in obtaining high clean-up and enrichment efficiency in the analysis of trace targets present in complex matrices. The objective of this review is to provide a broad overview of the recent advances and applications of SPSs in sample preparation prior to chromatographic analysis, during the period 2008-13. We include SPSs, such as molecularly-imprinted polymers, carbon nanomaterials, metallic nanoparticles and metal organic frameworks, focusing on solid-phase extraction, solid-phase microextraction, matrix solid-phase dispersion and stir-bar sorptive extraction of typical pollutants in environmental, biological, food and pharmaceutical samples. We propose remaining challenges and future perspectives to improve development of new SPSs and to apply them further.

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Liquid–solid extraction coupled with magnetic solid-phase extraction for determination of pyrethroid residues in vegetable samples by ultra fast liquid chromatography

Cited by 45 publications

References 36 publications

Magnetic solid‐phase extraction or dispersive liquid–liquid microextraction for pyrethroid determination in environmental samples

Magnetic solid‐phase extraction or dispersive liquid–liquid microextraction for pyrethroid determination in environmental samples

Capillary electrophoresis combined in-line with solid-phase extraction using magnetic particles as new adsorbents for the determination of drugs of abuse in human urine

Recent advances in solid-phase sorbents for sample preparation prior to chromatographic analysis

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